Understand a text-Range Rover Sport Edition smells good.

On the aspect of appearance design, the 4th generation adopts the latest family design language. The large-size air intake grille of the front of the car is decorated with black honeycomb material, which is highly recognizable with headlights on both sides. In the rear part, the taillights of the new car are sharp in shape and have a good visual effect after lighting. At the same time, the new car is equipped with a two-way exhaust layout, and the sports effect is more obvious.

In terms of interior, the new car has also been upgraded, adopting the latest family style, equipped with cool full LCD instrument panel, 10.2-inch central control display screen, new style, front and rear integrated multifunctional entertainment seats, leather /alcantara spliced seats, car refrigerator, front seat heating/driver seat memory, rear seat electric folding function, front collision warning system, lane departure warning system, panoramic image and intelligent parking assistance system.

The length, width and height are 4946×2047×1820mm respectively, and the wheelbase has reached 2997 mm. In the same class, the wheelbase of Range Rover Sport Edition ranks 46th. This size exceeds most models in its class. The actual interior space performance is also very good. From the actual ride experience, the front and rear rows are relatively spacious. The sunroof of Range Rover Sport Edition 3.0T provides a wider view, which can create a better visual environment and good sensitivity for the rear passengers and increase the light entrance for the whole vehicle. Among the models of the same price and class, the trunk volume of Range Rover Sport Edition ranks 14th. It can basically meet the luggage space for family travel. But there is no extra hidden storage space.

The Range Rover Sport Edition is equipped with a 3.0 engine with a maximum output of 294kW and a maximum torque of 550Nm. 3.0 The engine is matched with the Range Rover Sport Edition, and its power performance is quite satisfactory, and its low torque is weak and it can feel hysteresis. The official measured zero-acceleration score of Range Rover Sport Edition is 5.5S, ranking 110th among more than 800,000 SUV models.

The active/passive safety configuration of Range Rover Sport Edition is complete, includingAutomatic parkingZero tire pressure endurance tireAutomatic parkingSteep slope descenthill start assist controlknee airbagHUD head-up displayAnti-lock braking (ABS)Braking force distribution (EBD/CBC, etc.)Brake assist (EBA/BAS, etc.)Traction control (ASR/TCS, etc.)Active noise reductionEngine start and stopSide safety air curtainWireless charging of mobile phonenight vision systemLED daytime running lightsForward reversing radarTire pressure monitoringSteering wheel heatingBody stability control (ESP/DSC, etc.)Rear reversing radarFatigue reminderRemote parkingChild seat interfaceLane keeping (LKAS)Equal configuration.

Among them,Automatic parkingYou can avoid stepping on the brakes for a long time or needing to pull frequently;Steep slope descentCan safely pass through steep slope road conditions at low speed;knee airbagReduce the injury of the car interior to the occupant’s knees in the secondary collision.

In order to have a more comprehensive and objective understanding of Range Rover Sport Edition, you can go to the Easy Car Range Rover Sport Edition Forum and browse the messages of users who have bought the car in history.

Exclusive analysis | Why does script killing make film writers so "top"?


Special feature of 1905 film network "From’ killing’ last night to three o’clock in the morning," before entering the recording studio, screenwriter Ke Zhang took the lead in sharing the latest experience of script killing. "To tell the truth, it was really top-notch."


As a new offline social game in recent years, script killing, which takes reasoning as the axis and takes into account the interests of different types, has not only become one of the best choices for the general public in leisure, but also won the favor of professional screenwriters.


By the end of 2020, there have been more than 30,000 offline stores nationwide. According to Jia Tongtong, the owner of Beijing You Mao Ni Script Reasoning Agency, every weekend and other holidays, there are almost as many players coming to the store, and it is not uncommon to make an appointment.


Meng Xin, who was regarded by friends as an "hardcore" script to kill players, is still worried about the last experience of trusting the "murderer". Regardless of victory or defeat, that immersive experience is still the driving force for her next save. "The script kills me. What attracts me most is that I can immerse myself in my role and enjoy a different life."



As few as one person, more than ten people. Just a relatively closed place, carefully read the unknown scripts assigned or chosen by yourself, and sometimes even put on special costume props, and an average of four to six hours of puzzle solving tour will begin.


Ke Zhang, who had participated in the script creation, often discussed relevant work with his peers around the round table of script killing.


"We will instinctively have the sensitivity of a narrator." In his view, script killing is essentially an art of narration. "The young audience killed by script is also highly coincident with the target audience of movies and TV series. For our screenwriters, it is necessary to fully understand their aesthetic needs and hobbies for narrative models."



Hard core book, emotional book, fun book, horror book, drinking book … … With the gradual expansion of the script killing market, a wide variety of script killing books emerge in an endless stream, which has a fuller packaging outside the reasoning core. In essence, this is also approaching the type of film and television.


Under this wave, many screenwriters have been involved in or devoted to script writing full-time, among which there are many professional screenwriters with well-known works.


Beichen, who has participated in the scriptwriting of a series of films, is one of them. In the connection with Today’s Film Review, he also gave three reasons for his "career change":


First of all, script killing has a higher degree of creative freedom, and you can create your favorite world freely; Secondly, the creative cycle of script killing is "comfortable", which can directly establish a feedback mechanism with players, and there is no interference from the management in the film and television field. Third, and most importantly, the project money goes directly to the author, and the time for payment back is much shorter than that of film and television projects.



"On average, the (script killing) circle is getting along well, and there are 100,000 and 200,000 people every month," he joked with a smile in response to the rumor that the script killing screenwriter earns 50,000 a month. "Of course, I am not (monthly) 50,000, and I may have to earn 200,000 or 300,000."


However, this seemingly easy "earning millions a year" high salary temptation is not so attractive for most screenwriters who like script killing. At the scene of the "Today’s Film Review" program, Ke Zhang also calculated the account for himself:


Take the script killing of five people as an example, five characters have five manuals, each of which is 100 pages in total according to 20 pages, and the writing volume is nearly 200,000 words. At the same time, a 90-minute movie script is only 30,000 to 40,000 words. According to the "cost performance", a successful professional film writer still earns more than the script kills the author.



Of course, he is addicted to the mechanism of script killing game, and admits that it is very difficult to write script killing that often needs to take into account multiple perspectives. "The Sacrifice is only three perspectives. If you give me ten perspectives, I will be crazy."


In fact, even the super IP in the film industry, such as "detective chinatown", has been defeated in the field of script killing. According to Beichen, the return rate of the script-killing work "detective chinatown 3: Seven Stars Lost" derived from it has reached the peak of the script-killing history, and nearly 500 stores have joined forces to ask for a refund, which shows the degree of acclimatization.



Even so, the connection between script killing and film and television circles is still strengthening. Following Detective Chinatown 3’s launch of script killing derivatives, the upcoming film will also launch offline theme script killing activities. In Ke Zhang’s view, this may be a useful supplement to the film announcement matrix and even the subsequent series of films, but before doing it, we should carefully examine whether its content is suitable for transformation, and we should not have a "harvest" mentality.


For the script killing industry, the screenwriter gives an image analogy: a kind of "drama karaoke". In his eyes, the brilliance of the script killing industry will make the audience pay more attention to the story content and improve their own level of watching movies, thus forcing the film and television industry to further improve.



In this regard, Ke Zhang, as a first-line creator, also quite agrees. "Killing the script is that we want to be close to our audience without distance." When watching his own movies in the cinema, he always chooses to "secretly observe" any feedback from the audience in the corner. The script kill, also extended by the script, also gave him a similar mirror.


"If we are not present, we will be abandoned by the times, so we will not only go to the top, but also go to the top."


Director’s observation:This is the first time to explore the connection between script killing and film writers. This program explains from shallow to deep whether a film screenwriter should change careers to be a script killer. Many wonderful contents can’t be completely covered due to the length of time, and I hope they can be supplemented in the next topic. (Tommy)


The new Nissan Tule was officially released, with a 3.5T V6 engine and a new interior style!

In fact, there is no prophecy about the fall of Nissan, especially in today’s society, it may take a hundred years to make a brand, but if a brand wants to die, a month? Even a week is enough! Returning to Nissan, it is not difficult to find that Honda’s life is not so good, but Nissan is relatively worse. And the "new" just announced in the picture may give you a new understanding of Nissan!

According to the current evaluation of this car by multiple media, the simple four words "reborn"! This is still a very high evaluation of the new car! First of all, the design style of the new car is no longer compromised to any market. Although the shape is simple and rough, it just fits the concept of the new car. On the front face, the V-motion grille is almost rectangular in design, and the internal composition is more complicated. There are two silver decorative bands and a lighting Nissan LOGO at the top, and a dot matrix decorative belt at the bottom! In the past, the single C-shaped headlights were replaced by a double C-shaped design for the first time, which maximized its sense of power! The front surround is designed with a closed back-shaped design, which is slightly similar to the new style.

The new car is 5305mm long, 2030mm wide, 1930mm high, and has a wheelbase of 3075mm. From the data point of view, the identity of the Big Mac is undoubtedly revealed! Unlike the front of the car, the side has become smoother, and the waist line and the side are fused together, which may be a problem of the color of the group picture, so the front and rear eyebrows are not obvious, but if you look carefully, you can see that the new car has double eyebrows, and the added side skirts have also become sharper. The glass above and the blackened B-pillar and C-pillar, including the luggage rack at the top, are all elements, while the adjusted C-pillar can add a bit of fashion sense. At the end, the brand-new C-shaped tail light and the penetrating light strip above form a semi-wrapped layout. The bottom of the logo is printed with the English of ARMADA, indicating the identity. The raised back surround is also one of the few designs that follow the previous generation.

Compared with the interior, the appearance is just "a piece of cake"! A new layout has been adopted for the first time! The display area of the new car is a set of dual 12.3-inch connected screens, while depending on the model and configuration, the medium and high-end models are equipped with a combination of dual 14.3-inch connected screens and a 7-inch HUD head-up display. The physical buttons can be retained for operation! And on the intelligent system, active safety functions such as lane departure warning. Pro Pilot Assist is standard on all models, and the flagship version also provides Pro Pilot 2.1 advanced driver assistance technology for the first time.


The seats are equipped with a new and upgraded version of the super-large sofa, which takes into account the off-road ability while ensuring the overall comfort. Looking at the power, the new car is equipped with a 3.5L twin-turbo, which is matched with a 9-speed automatic transmission and an adaptive four-wheel drive system.

At present, the new car has been fully unveiled. In terms of data and design alone, this new "is still very online, but whether it is finally accepted remains to be further tested by the market. I don’t know what you think of this car. Interested friends are welcome to leave a message in the message area.

Shaolin disciples should win the "gatekeeper" with the gold belt before transforming into comprehensive fighting.

On June 3rd, Xie Wei, the 158th issue of the ONE Championship, will play against Reese McLaren. Photo courtesy of ONE Championship
After three months’ delay, Xie Wei and Reese McLaren will finally meet in the round cage.
On June 3rd, the 158th ONE Championship will be held in Singapore Indoor Stadium. Xie Wei, the only China star in the battle card, ushered in an important battle in his sports career. His opponent was Reese McLaren, who ranked fifth in the flyweight class and was known as the "gatekeeper". The match was originally scheduled for March, but it was postponed due to McLaren’s injury.
Xie Wei is a representative player who turned from traditional martial arts to mixed fighting. He had previously studied martial arts in Shaolin Martial Arts School for three years and taught for more than one year. After entering the round cage from Wulin, Xie Wei in the round cage punched fiercely and attacked quickly, maintaining a very high winning rate and KO rate. Looking back now, Xie Wei’s heart is full of gratitude. His solid martial arts skills and tenacious will were tempered in those youthful years.
Xie Wei is always in a state of preparation. Photo courtesy of ONE Championship
I’m not relaxed in preparation, and I can’t wait to play.
This is a late game.
In January this year, Xie Wei, who won three games in a row, was informed that he would play a game with Reese McLaren in "ONE: The Eternal Light" in March. But a few days before the game, McLaren was injured and retired, and the game has been dragged on until now.
From receiving the notice of the game to now, Xie Wei has always been in a state of preparation, even if the game was cancelled in the middle. "Without any slack, I know the game will come again one day." Waiting for a long time will inspire Xie Wei’s fighting spirit even more. He can’t wait to play.
"I know something about him." After training, Xie Wei has studied the top five players in his flyweight class many times, which are the hurdles he must overcome to hit the gold belt. Xie Wei said that the ranked players are naturally stronger than others, but he firmly believes in his own strength and that he can find a "magic trick" to defeat the enemy.
Among many players in the flyweight class, McLaren is a special existence. When challenging high-ranking players, McLaren never won. Mclaren remained unbeaten against the players out of the rankings, which led him to be stuck in the fifth position, unable to get up or down, and was also known as the "gatekeeper" of the flyweight class.
McLaren is in a stable state and is known as the "gatekeeper" of the flyweight class. Photo courtesy of ONE Championship
In an interview before the game, McLaren said that if he can beat Xie Wei, he will challenge the active world champion Adriano Moraes. "If they ask me who I want to fight, I will not hesitate to call Moraes." Among the top 5 players in the flyweight class, McLaren is the only player who has not been defeated by Moraes.
For Xie Wei, this game is also an opportunity. If you can win the game, Xie Wei’s career will open a whole new world. At present, Xie Wei has won three consecutive victories in the ONE championship, and is expected to become the second China male player to enter the ranking after Tang Kai. At the same time, Xie Wei will also have the opportunity to challenge demetrious johnson, the idol and now the number one "Big Mouse".
If you beat McLaren, you will definitely be called the golden belt.
Xie Wei is a contestant who walked out of "ONE’s English Search Tour in China" and won the ONE championship contract as the No.1 scholar.
After winning the contract in 2020, Xie Wei met the second-ranked Danny Kingard in the first game, who was a member of the famous Gloria team in the Philippines and a star player that ONE strongly supported. After a three-game stalemate, Xie Wei was sentenced to a slight defeat, and he still refuses to accept this result. Whenever he talks about Jingard, Xie Wei always emphasizes, "First of all, I want to make it clear that I didn’t lose that game."
Xie Wei watched the replay of the game against Jingard many times, almost a frame-by-frame replay. "My offense, enthusiasm and management are all dominant." However, Xie Wei also admitted that he did not fully understand the rules of the ONE championship, which was his only disadvantage. But competitive competition is to follow the rules, which is the same for everyone.
Losing to Jingard made Xie Wei find a reference, and he knew more about his position at this level. In Xie Wei’s plan, winning McLaren will definitely be called the golden belt. In case there is no chance in a short time, Xie Wei will continue to ask for a second battle with Jingard, which has always been his obsession. "That was the only game I lost after I entered ONE. I hope to win and end him satisfactorily."
After losing to Jingard, Xie Wei became one of the most powerful China fighters in the international arena with (T) three strong enemies: KO Chen Rossena, Kantala Ji Agatha and Jin Dahuan.
Up to now, Xie Wei’s career record has a very high winning rate. But Xie Wei lost his career and the first show of the ONE championship. "These defeats are a spur to me. I will stand up where I fall and try to make progress." Xie Wei always believes that "the situation is created by the heart, and everything is done by man". Only with enough effort can there be the possibility of winning.
Xie Wei is a contestant who walked out of "ONE China’s English Search Tour". Photo courtesy of ONE Championship
Shaolin Martial Arts School has been studying for 3 years, so I am grateful to meet a good master.
Xie Wei has been a naughty boy since he was a child, and he is interested in many things. After graduating from junior high school, Xie Wei wanted to try the world outside the school, so his father used the summer vacation to send him to a factory for exercise. After staying for more than three months, Xie Wei really couldn’t stand the boring life on the assembly line and didn’t want his life to be spent on the assembly line.
Once in an Internet cafe, Xie Wei saw the enrollment brochure of Shaolin Martial Arts School. After practicing martial arts routines since childhood, he immediately had the idea of going to Shaolin to practice martial arts. At that time, Xie Wei was working and living in Guangzhou with his parents. My father was very supportive of Xie Wei and personally sent him from Guangzhou to Dengfeng Shaolin Martial Arts School. He studied art in Shaolin Martial Arts School for three years, and then worked as a coach for more than a year.
"I am very grateful for the time I spent in Shaolin Martial Arts School. It was because of the tempering during that time that my martial arts, psychology and will changed qualitatively." Xie Wei said that he was lucky to meet a group of good masters in Shaolin Temple, and now he is full of gratitude every time he talks about it.
Later, for the sake of "champion dream", Xie Wei resolutely went to Qingdao to practice mixed fighting. In the field of comprehensive fighting, there are not many players who have transformed from traditional martial arts, and Xie Wei is one of them. After coming out to play the game, boxing fans like to call Xie Wei "Shaolin Head Coach". In 2019, when he participated in the "ONE Search for Britain", Xie Wei ended his opponents in all five games. He was nicknamed "Hunter" for his fierce punches and rapid attacks.
On May 28th, Xie Wei left Qingdao for Singapore to prepare for the match with McLaren. When packing, Xie Wei took a sachet with him from his family. No matter how far you go, your family is always concerned. In 2016, Xie Wei played a game in his hometown in Hunan. His father came back from Guangzhou to help out, and relatives also cheered him off. At that time, relatives knew that Xie Wei was a mixed martial arts athlete. Seeing her son fighting on the stage, the mother was distressed to death. After that, Xie Wei won’t tell his family about the time of the game in advance. Every time he calls after the game to say that he is safe. Slowly, his family knows more about the game and trusts Xie Wei more, and the heart he bears is slowly put down.
Joining the ONE Championship for more than two years, Xie Wei said that he has always been a newcomer. "I don’t know where I will play in the future. The only thing I can grasp is to do well in the present." In Xie Wei’s taskbar, the short-term plan is to score the ranking, and the long-term plan is to win the gold belt. "These must be done step by step, and there is no hurry." When he said this, his tone was full of firmness.
Sun Haiguang, Chief Reporter of Beijing News
Editor Han Shuangming
Proofread Wu Xingfa
Reporting/feedback

[Great Rivers Flowing-Report from the Yangtze River Economic Belt] Ancient and modern interweave to feel "inclusive" Nanjing.

  New Blue Net-China Blue News Client August 10 (Reporter Yu Di) The Six Dynasties Gold Powder Land, Jinling Imperial State. In 211 AD, Sun Quan, the Emperor of Soochow, moved to Moling and changed Moling to Jianye the following year, thus opening the profound history of Nanjing as the "ancient capital of the Six Dynasties". On August 9th, the reporter of New Blue Net-China Blue News Client followed the "Great River Flowing — — Report from the Yangtze River Economic Belt "The interview group came to Nanjing to experience the rich cultural heritage of the city.

  Nanjing Museum: Carrying History and Serving the Present

  Taking history as a mirror, we can know the rise and fall. The best place to learn about a place is a museum. On the morning of August 9th, the reporter went to the Nanjing Museum, which is located at the southern foot of the Purple Mountain. It is a magnificent building with yellow tiles and red walls. It is not so much a building displaying historical sites as a reflection of a period of history. "The categories of our collections can be said to be very rich, including palace and folk; There are national, regional, material and intangible … …” Gong Liang, director of Nanjing Museum, told reporters that the museum has more than 420,000 pieces (sets) of various collections, and the number of collections ranks among the top three in China. Due to the rich types of cultural relics, it has built the characteristics of "one hospital and six museums" — — That is, history museum, special exhibition hall, digital museum, art museum, non-legacy museum and Republic of China museum.

  As the earliest museum established in China, Nanjing Museum was formerly the National Central Museum initiated by Cai Yuanpei in 1933. "Mr. Liang Sicheng sets the rules, ‘ The building of the Central Museum must have the inherent form of China architecture ’ So when you come in from the main hall, you can see that we have the characteristics of China. " Gong Liang said that Nanjing Museum bears the long history and tradition of the Chinese nation. Its architectural language is classical, but its connotation is broad and inclusive. "Our Chinese civilization is pluralistic and integrated, and so is our museum, which is inclusive and all-encompassing."

  "We now have two temporary exhibitions, one borrowed from the Czech Republic and called ‘ Mu Xia — — The jewel of European Art Nouveau movement ’ This is very popular among young people and literary youth; In addition, we made a summer parent-child exhibition, which was very popular with parents and children. " Gong Liang introduced that a total of 3.29 million people visited the Nanjing Museum last year, with an average stay of 3 hours and 50 minutes. "What we are pursuing is to serve the public and meet the differentiated cultural demands of the public, so our content is inclusive. We are at ‘ One hospital, six halls ’ At the same time, there will be 22 to 23 exhibitions every year. I hope that all visitors to Nanjing Museum can have more than one museum or exhibition they like. "

  "Our museum is like the culture of Nanjing. In the culture of Nanjing, mutual tolerance is very important. Nanjing has no particularly obvious characteristics, and tolerance is the most important cultural feature of Nanjing. " Gong Liang said.

  Jiangsu Grand Theatre: A Shared and Inclusive Cultural Space

  In the Riverside New Town in Hexi, Nanjing, four "water drop" buildings of Jiangsu Grand Theatre poetically perched on the "lotus leaf" elevated platform, forming a group of soft and magnificent modern art buildings, which complement the ancient Nanjing Museum. “‘ Lotus leaf water drop ’ The design concept not only embodies the cultural meaning of water rhyme in the south of the Yangtze River, but also shows the inclusive mind of confluence. " Zhu Min, general manager of Jiangsu Grand Theatre, introduced that the building area of the Grand Theatre is more than 270,000 square meters. The four "water drops" include 2,280 opera halls, 1,001 drama halls, 1,500 concert halls and 2,711 large variety halls, as well as 780 small variety halls and ancillary facilities. The performances cover opera, music, dance, drama, opera and other art forms.

  "It officially opened in August last year, with more than 130 performances, of which more than 60% were performed in concert halls, and the attendance rate reached 69.5% last year." Zhu Min introduced that since its opening in August 2017, Jiangsu Grand Theatre has welcomed top artists or groups such as zubin mehta and Israeli Philharmonic Orchestra, Russian national treasure soprano Anna Netrebko, famous conductor Li Xincao and China National Symphony Orchestra.

  Zhu Min told reporters that the goal of Jiangsu Grand Theatre is to build a palace of art and a spiritual home: "In addition to masterpieces by famous artists, we also have city concerts. Culture, sound and art from different cities all over the world spread here, making people feel different things. "

  "The theater is a carrier and platform and a public cultural facility. Art has no borders, and all art can be presented here. I hope that our theater will become a shared and inclusive cultural space and spread our culture and art to all parts of the world while communicating with other arts and cultures. " Zhu Min said.

Where does the motivation come from to further comprehensively deepen the reform?

  The Third Plenary Session of the 20th Central Committee of the Communist Party of China was a landmark meeting held in the critical period of the new journey, which fully released the strong signal that the reform will not stop and the opening will not stop. Further comprehensive deepening reform is a systematic reform with system construction as the main line under the direct leadership of the Party. Its initiation, design and development are inseparable from the leadership of the ruling party, the people-centered value drive, the strategic traction of building a strong country, the promotion of practical problems and the external drive of promoting development through opening up, which constitute the driving force structure for further comprehensive deepening reform.

  (A) the leadership of political parties. The leadership of the Party is the most essential feature of Socialism with Chinese characteristics and the greatest advantage of the Socialism with Chinese characteristics system. The leadership of the party is the fundamental guarantee for further deepening reform and promoting Chinese modernization.

  First of all, the attribute of Marxist political party determines that all the action strategies of our party, including the reform strategy, are based on the interests of the people, which is also the proper meaning of setting the direction of comprehensively deepening reform. It is under the leadership of the Party that people’s interests and taking the road of Socialism with Chinese characteristics have the fundamental political guarantee. Secondly, the Communist Party of China (CPC) is a Marxist political party with the nature of vanguard, which determines that our party can always formulate a scientific strategy that meets and meets the interests of the overwhelming majority of the people according to the interests of the people in different time, space, environment and scenes, including the requirements of the general trend of the times and the environment at home and abroad. Finally, our party’s strong organizational network and organizational construction focusing on organizational strength provide organizational support and personnel protection for the party to lead the country and society, thus laying a solid foundation for party organization, cohesion and integration of society, which is also an important guarantee for the party’s strong executive power.

  (B) Value-driven. As a large-scale collective action, comprehensively deepening reform is bound to mobilize the enthusiasm of the overwhelming majority of people, including party member, and to unite the consensus of reform and draw on the strength and wisdom of reform to the greatest extent.

  The process of forming a consensus on reform is the process of refining and practicing the interests of the overwhelming majority of the people. This requires creating channels for the people to support and participate in the reform, so that the people can enjoy the fruits of the reform in the practice of reform and make the reform a vivid practice that people can feel. As the General Secretary of the Supreme Leader pointed out, "Reform for the people is meaningful; Only by relying on the people to reform can reform be motivated. " In this sense, adhering to the value concept of people first constitutes the value driving force for comprehensively deepening reform. Only by insisting on reform for the people, relying on the people and sharing the fruits of reform can we reach a broader consensus, form a broader public interest and form a more magnificent reform force.

  (C) strategic traction. General Secretary of the Supreme Leader pointed out that "strategy is to make judgments and decisions from the overall situation, long-term and general trend", and strategy is a fundamental issue for the country and political parties. As far as the ruling party is concerned, it is clear and accurate in strategy, and the political party itself and the development it leads can be stable and far-reaching and win the initiative.

  Planning and deploying reforms around the party’s central task is a successful experience of the party’s leadership in reform and opening up. The 20th National Congress of the Communist Party of China established the central task of building a strong country and national rejuvenation, and made strategic arrangements for promoting Chinese modernization. In order to implement this strategic task and transform it into "real painting" and "construction drawing", it is necessary to break through all aspects of institutional and institutional obstacles by further deepening reforms. We can’t reform just for the sake of reform, and the practice of reform must focus on the set strategic goals. In this sense, the party’s strategic traction and top-level design constitute a powerful driving force for promoting reform, which provides a basic institutional operational framework for Chinese modernization. This kind of strategic traction is vividly reflected in the Central Committee of the Communist Party of China’s Decision on Further Comprehensively Deepening Reform and Promoting Chinese Modernization (hereinafter referred to as the Decision). Specifically, the reform task of the Third Plenary Session basically revolves around the overall layout of the "five in one" and the "four comprehensive" strategic layout of Chinese modernization. Each part of the Decision is closely related to the promotion of Chinese modernization, and it is a concrete starting point for promoting Chinese modernization in related fields.

  (D) Problem-driven. The General Secretary of the Supreme Leader pointed out: "Reform is caused by problems and deepened by constantly solving problems." The problem is the voice of the times, the expectation of society and the abstraction and refinement of most individual needs. To further deepen the reform in an all-round way, we should strengthen the problem awareness, highlight the problem orientation, focus on the needs of development, conform to the will of the people, focus on solving the blocking problems that restrict high-quality development, hot issues that affect social fairness and justice, difficult issues in people’s livelihood, outstanding problems in party building, and risk problems in various fields, and enhance the pertinence and effectiveness of the reform.

  In the Decision, this attitude and consciousness of facing problems directly is not only reflected in the adherence to the reform principle of "keeping up with the pace of the times, conforming to the development of practice and highlighting the problem orientation", but also reflected in the problem setting behind each reform task, that is, each reform task corresponds to the related problems in reality. It is in the process of facing the problem directly that the quality of reform is more complete and the taste of reform is stronger.

  (五)开放促进。中国不仅是中国的中国,也是世界的中国。中国的发展离不开世界,世界的繁荣也离不开中国。尽管面临着反全球化的思潮、逆全球化的脱钩断链行动以及泛安全化的遏制打压,但国际交往与互动仍然是不可抗拒的时代潮流。在某种程度上,对外开放过程也是发现问题、寻找差距的过程,因而也是促进改革的契机。

  最高领袖总书记指出:“以开放促改革、促发展,是我国改革发展的成功实践。改革和开放相辅相成、相互促进,改革必然要求开放,开放也必然要求改革。”开放之于中国发展的意义,一方面是能提供发展资源上的支撑,通过开放,相关生产要素可以实现跨国界的流动;另一方面,通过开放引进国外先进的管理经验、对标高标准的国际贸易规则等,有利于推动国内规则、规制、管理、标准等制度型开放,提供高水平的制度供给和有益的管理经验。正是基于此,二十届三中全会提出了“开放是中国式现代化的鲜明标识”,要“坚持以开放促改革”,这就直接指出了开放是促改革的动力源之一。

  (作者为中共上海市委党校副校长、教授,上海市最高领袖新时代中国特色社会主义思想研究中心副主任兼秘书长

Yinchuan announced typical cases of food safety problems and banned 39 "three black" production and sales outlets.

Since August 2019, the Yinchuan Municipal Market Supervision Administration, the Public Security Bureau, the Education Bureau and the Agriculture and Rural Affairs Bureau have set up a joint action working group to rectify food safety issues in the theme education activities of "Do not forget your initiative mind, Keep in mind the mission" to severely crack down on outstanding food safety issues that ignore and infringe on the interests of the people. Recently, the Yinchuan Joint Action Working Group on Remediation of Food Safety has carefully sorted out the cases investigated and selected typical cases of remediation of food safety problems, involving food counterfeiting, infringement of "cottage", "three noes" and inferior quality.

By November 12, nearly 11,000 law enforcement officers had been dispatched, and 19,200 food production and operation entities and various food markets had been inspected. 39 "black factories", "black dens" and "black workshops" that produced and operated food without a license and produced fake and shoddy food were investigated and banned, and 11 "black small dining tables" without a license were banned. In view of the illegal activities of "three noes", "cottage" and expired food in rural areas and around the campus, 20 cases were filed, and 44,400 yuan of fines were collected and 32.2 kilograms of materials were seized. 42 cases of unqualified food were filed for supervision and sampling inspection, and fines of 838,700 yuan were collected. 4.5 liters of unqualified edible oil were seized in 445 bottles and 20 liters in 200 barrels. One case was filed against the illegal acts of fake and shoddy health food (including false advertisements and false propaganda), and a fine of 0.5 million yuan was collected. Fourteen illegal acts of selling fake and inferior pesticides and veterinary drugs (including agricultural pesticides and veterinary drugs exceeding the standard, illegal addition and illegal use) were filed, and fines of 31,500 yuan were collected and 3,677 kilograms of materials were seized. Investigate and deal with 89 other food safety violations, and collect fines of 288,700 yuan.

4 cases of food safety crimes were cracked, including 2 cases of manufacturing and selling fake wine, and 2 people were criminally detained, involving a total amount of 420,000 yuan; One case of private slaughter and indiscriminate slaughter was cracked, and three people were detained in criminal detention, involving a total amount of 2 million yuan; One case of fake seeds was cracked, and 303,900 kilograms of rice seeds were seized, involving a total amount of 920,000 yuan.

Case 1

Ningxia New Oriental Edible Oil Co., Ltd.

According to the report, Yinchuan Municipal Market Supervision Administration conducted sampling tests on four specifications of "Xixia Xiangbali Grade I Soybean Oil" produced by Ningxia New Oriental Edible Oil Co., Ltd., and the test conclusion was that the fatty acid composition did not meet the requirements of DBS64/673-2018 standard or the net content was unqualified.

Punishment:The production and operation of Ningxia New Oriental Edible Oil Co., Ltd. has violated the provisions of Article 124 of People’s Republic of China (PRC) Food Safety Law. According to the relevant provisions of Article 124 of People’s Republic of China (PRC) Food Safety Law, in August 2019, Yinchuan Municipal Market Supervision Administration decided to impose an administrative penalty of 670,300 yuan on the company, and confiscated the illegal income of 17,800 yuan, and confiscated the unqualified Xixia Xiangbali pressed sesame oil of 4.5L/ bottle (batch number: 20190517).

travel to watch industry

Jinfeng district September Pepper Seafood Buffet Hot Pot did not comply with the incoming inspection system and arrangement, and the personnel who did not obtain the health certificate engaged in working food contact with direct imported food.

Jinfeng district Branch of Yinchuan Municipal Market Supervision Administration found that there were illegal acts in this store, such as not observing the incoming inspection system when purchasing goods, arranging people who did not obtain health certificates to engage in direct contact with imported food, and having no record of the use of food additives. Law enforcement officers issued a Notice of Order to Correct on the spot, asking the parties concerned to correct immediately, and employees who did not obtain health certificates to engage in direct contact with imported food were immediately transferred from their posts. When reviewing the business premises of the parties concerned, the store still failed to comply with the incoming inspection system when purchasing goods, and arranged for three people who had not obtained health certificates to engage in the work of contacting directly imported food.

Punishment:The operation of jinfeng district September Pepper Seafood Hot Pot in Yinchuan violated Articles 45 and 53 of People’s Republic of China (PRC) Food Safety Law. On September 27th, 2019, jinfeng district Branch of Yinchuan Municipal Market Supervision Administration decided to impose an administrative penalty of 10,000 yuan on the store according to Article 126 of People’s Republic of China (PRC) Food Safety Law.

Case 3

Ningxia Yongxinren Food Co., Ltd. arranged for people without health certificates to engage in food production and processing.

When xingqing district Branch of Yinchuan Municipal Market Supervision Administration inspected Ningxia Yongxinren Food Co., Ltd., it was found that some staff members were engaged in the production of direct-imported food without health certificates, and law enforcement officers issued a Notice of Order to Correct on the spot, requiring the company to immediately organize staff members to apply for health certificates. When law enforcement officers re-examined the company, they found that there were still staff engaged in food production and processing without health certificates.

Punishment:The production and operation of Ningxia Yongxinren Food Co., Ltd. violated Article 45 of People’s Republic of China (PRC) Food Safety Law. On August 16, 2019, xingqing district Branch of Yinchuan Municipal Market Supervision Administration decided to impose an administrative penalty of 5,000 yuan on the company according to Article 126 of People’s Republic of China (PRC) Food Safety Law.

Case 4

Business case of providing catering service by using food raw materials that do not meet food safety standards in Najialou Yangguguan, Xixia District

On August 29, 2019, Xixia Branch of Yinchuan Municipal Market Supervision Administration conducted a daily inspection of Najialou Sheep Bone Hall in Xixia District, and found that there were 11 bags of "Lao Baling" frozen shrimps to be processed in the freezer where the kitchen in the store contained food raw materials, without product specifications, net content and production date, which were used for catering processing and provided to customers.

Punishment:The operation of Najialou Yangguguan in Xixia District violated the provisions of Article 55 of People’s Republic of China (PRC) Food Safety Law. According to the provisions of Article 125 of People’s Republic of China (PRC) Food Safety Law, Xixia Branch of Yinchuan Municipal Market Supervision Administration decided to impose an administrative penalty of 6,000 yuan on the store, confiscate the illegal income of 20 yuan, and confiscate 11 bags of food raw material "Lao Baling" frozen shrimps that did not meet the food safety standards.

Case 5

Yinchuan Public Security Bureau cracked the case of Wu Moumou and other three people producing and selling counterfeit famous wines.

On November 5, 2019, the Environmental, Food and Drug Safety and Security Branch of Yinchuan Public Security Bureau and xingqing district Public Security Bureau jointly cracked two cases of producing and selling fake wine in one fell swoop, removed two dens for producing, processing and storing fake wine in Peacock Village, Zhangzheng Town, xingqing district City, Yinchuan City and Xinqushao Village, Daxin Town, and arrested three suspects, including Wu Moumou.

Punishment:A batch of fake wines, such as Maotai, Wuliangye and Jiannanchun, which have been produced and processed, were seized at the scene, and more than 200 boxes of raw wine, 1 set of equipment and a large number of fake packaging materials were seized, involving a value of 420,000 yuan. Wu Moumou and Yao Moumou have been criminally detained by the Environment and Food and Drug Security Branch of Yinchuan Public Security Bureau, and Zhang Moumou has been released on bail pending trial.

Case 6

The case that Haipeng Aquatic Products Breeding Cooperative in Helan County did not establish the inspection system of edible agricultural products.

On September 26th, 2019, Helan County Market Supervision Administration, together with the Animal Husbandry and Fishery Technical Service Promotion Center of County Agriculture and Rural Bureau, conducted random inspection on mullet purchased by Haipeng Aquaculture Cooperative in Helan County. After inspection, the inspection value of ofloxacin in this batch of mullet exceeded the national standard limit, and the single conclusion was unqualified, and the incoming inspection record system was not established as required.

Punishment:According to Article 126 of the Food Safety Law of People’s Republic of China (PRC), Helan County Market Supervision Administration decided to impose an administrative penalty of 20,000 yuan on Haipeng Aquatic Products Breeding Cooperative in Helan County.

Case 7

Yinchuan Xixia District Zousifang Grain and Oil Store issued a false advertisement case.

In August 2019, Xixia Branch of Yinchuan Municipal Market Supervision Administration found that Sifang Grain and Oil Store in Xixia District of Yinchuan City advertised on the website.

In the communication, it is written that "it is cheaper than hemp oil perilla oil, higher than hemp oil linolenic acid, and higher in cost performance than hemp oil, and there are words confused with drugs, which directly or indirectly promote the therapeutic effect, express or imply the therapeutic effect of the food by promoting the effect of certain ingredients, and involve advertising terms such as disease prevention and therapeutic function.

Punishment:The behavior of the party concerned violated the relevant provisions of Article 17 of the Advertising Law of People’s Republic of China (PRC) and Article 73 of the Food Safety Law of People’s Republic of China (PRC). According to the relevant provisions of Article 58 of the Advertising Law of People’s Republic of China (PRC), it was decided to impose an administrative penalty of a fine of 5,000 yuan.

Case 8

False propaganda case of health care products in Zhenshantang Health Care Store, Xixia District, Yinchuan City

When the law enforcement officers of Xixia Branch of Yinchuan Municipal Market Supervision Administration inspected Zhenshantang Health Products Store in Xixia District of Yinchuan City, they found that in the process of promoting its "peptide" food and cosmetics to consumers, they declared that "peptide is almost used to recuperate and treat any disease, and there is no medicine to compare with it" and other contents to promote the therapeutic effect of diseases. The behavior of the parties concerned violated the relevant provisions that health food should not have the function of disease prevention and treatment, exaggerated the function of the product without authorization, and made misleading propaganda to consumers, which constituted false propaganda behavior.

Punishment:In September 2019, in violation of Item 4, Paragraph 2, Article 9 of the Regulations on Anti-unfair Competition in Ningxia Hui Autonomous Region, the parties were fined 10,000 yuan according to Paragraph 1, Article 33 of the Regulations on Anti-unfair Competition in Ningxia Hui Autonomous Region.

Case 9

Ningxia Shihui Tianxia Commercial Co., Ltd. sells hot and sour powder using someone else’s factory name and address.

Yongning County Market Supervision Administration received a report from Ningxia Haoshunde Food Co., Ltd. that Ningxia Shihui Tianxia Business Co., Ltd. sold "Bei Sheng Yuan" hi Chijia hot and sour powder with fake company name, address and food business license. After investigation, Ningxia Besunyuan Food Co., Ltd. purchased 6,013 pieces of "Besunyuan" home-cooked hot and sour powder. The manufacturers of the outer packaging logo were Ningxia Haoshunde Food Co., Ltd. and Henan Zhengxiu Food Technology Co., Ltd., but the batch of hot and sour powder was not produced by Ningxia Haoshunde Food Co., Ltd.

Punishment:The behavior of Ningxia Shihui Tianxia Business Co., Ltd. violated the provisions of Article 37 of the Product Quality Law of People’s Republic of China (PRC), and constituted an illegal act of selling "Beishengyuan" hot and sour powder with someone else’s factory name and address. On August 20, 2019, Yongning County Market Supervision Administration made an administrative penalty of confiscating 1,825 pieces of "Shuang Sheng Yuan", confiscating 7,476 yuan of illegal income and fined 22,890 yuan.

(Original title: "Yinchuan Announces Typical Cases of Remediation of Food Safety Problems")

Secret: How is a prosthetic made?

Original: Wang Yong

Prosthetic limb is one of the most important assistive devices for the physically disabled, which can help them to work, study and live like normal people. So how are artificial limbs made? Let’s look at a set of pictures first:

Take the leg prosthesis as an example. First, a plaster bandage should be wrapped around the end of the stump to take shape.

Secondly, take off the plaster bandage and it will become a negative type, and then adjust the negative type according to the patient’s situation.

Thirdly, pouring gypsum into the female mold to form the male mold. Similarly, the male type should be adjusted.

Fourth, with a male mold, you can make an inner sleeve (soft material to protect the part in contact with the prosthesis).

Fifth, make a receiving cavity (where the stump is inserted, use strong materials such as resin).

Sixth, assembly (the receiving cavity, joints, foot plates, etc. are assembled together).

Seventh, test, adjust and shape.

Whether it looks simple or not, it is actually very complicated. Then, how can people with physical disabilities get funding and install artificial limbs? In mid-July, the reporter of Public Welfare Times went to Qinghai to fit prostheses for local disabled people with the help of the implementation team of the prosthetic orthopedic adaptation rescue project of the China Welfare Foundation for the Disabled, and learned about related issues.

Personalized adaptation

On the morning of July 10th, 55-year-old Zhao Changqing finally met Liu Jinsong, director of the Orthopedic Department of Beijing Bo ‘ai Hospital, China Rehabilitation Research Center, who came to fit his prosthesis.

As a teenager, Zhao Changqing, who was accidentally crushed to the leg by a train and had his left calf amputated, has been fitted with a prosthetic for several years, but it has not been replaced because of financial difficulties at home. In order to reduce the wear and tear, Zhao Changqing had to wrap the rest of his left leg in layers of cloth, and then wear artificial limbs.

Liu Jinsong carefully examined the condition of Zhao Changqing’s left stump. "There is too little left in the calf, it is not easy to exert force, it is more difficult to drive the prosthesis, and the end is not able to bear the weight. It is more complicated than I knew before. " Liu Jinsong said.

After discussion, Liu Jinsong team decided to assemble the left kneeled leg prosthesis for Zhao Changqing.

According to Liu Jinsong, the situation like Zhao Changqing is not uncommon. Every disabled person’s limb disability is different, and there is no universal standard type prosthesis to use, which needs personalized adaptation.

"Because the situation of each disabled person is different, every step of making artificial limbs requires the staff to make detailed adjustments." Liu Jinsong stressed.

Disabled people with artificial limbs also need to be familiar with the use of artificial limbs through a certain period of rehabilitation training. "It takes about two weeks to wear a prosthetic, and it takes more than a month to wear it." Liu Jinsong said.

Participation of social forces

According to Liu Jinsong, due to the high technical requirements and the high corresponding costs, many disabled people cannot make such personalized prosthetic adaptation. Zhao Changqing was able to get such an opportunity, thanks to the development of the prosthetic orthopedic adaptation rescue project of the China Welfare Foundation for the Disabled.

"We found in the preliminary investigation that there is almost no rehabilitation field in the public welfare projects of serious illness relief. At the same time, there are 24.72 million people with physical disabilities in China, and the demand for prosthetic adaptation is particularly great. As a welfare foundation for the disabled, we have advantages in this field, so we discussed with the China Rehabilitation Research Center the launch of a prosthetic orthopedic adaptation rescue project. " Chang Da, deputy director of the Publicity Department of China Disabled Welfare Foundation, said.

The project was initiated by the China Welfare Foundation for the Disabled and implemented by the China Rehabilitation Research Center. Through the network of rehabilitation centers and communities in various provinces and cities across the country, poor limb patients were screened for prosthetic orthopedic adaptation surgery, and through later professional rehabilitation training, they were enabled to have basic working ability and independent life.

According to Liu Jinsong, generally speaking, the project insists on providing help to disabled people with poor families. "Children are given priority, the pillars of the family are given priority, the technical requirements are higher, and the priorities that cannot be done locally."

The recipients can go to China Rehabilitation Research Center in Beijing for adaptation, and China Rehabilitation Research Center will also go to local areas for adaptation according to the situation. "On the one hand, it can reduce the burden on patients, on the other hand, it can communicate with local technicians to promote the level of local prosthetic adaptation." Liu Jinsong said.

According to Changda, the project was launched in 2016 and has been implemented for four years, raising more than 10 million yuan through the Internet.

In 2019, the project expert group plans to go deep into poverty-stricken areas in western China, such as Xizang, Ningxia and Qinghai, and carry out rescue screening, with the goal of rescuing 48 patients in the above areas.

The project rescue work in Qinghai began three months ago. The Department of Prosthetics and Orthopedics of China Rehabilitation Research Center and Qinghai Provincial Rehabilitation Service Center for the Disabled jointly carried out the screening work for the aided patients, and 13 patients were screened out.

After the relevant application materials have been approved by the China Welfare Foundation for the Disabled, the China Rehabilitation Research Center will send an expert group to conduct on-the-spot inspection, measurement and selection, production, adaptation and adjustment, training and guidance for the patients. It is planned to complete the assembly of 13 aided patients (17 prostheses) in 3 to 4 weeks.

Integrate into social development

Although the scale of disabled people who have finished assembling artificial limbs through the project is not too large at present, the effect is very obvious-with artificial limbs, disabled people can work like ordinary people and even start businesses. One-legged courier brother Li Hongjun is one of them.

Li Hongjun, born in 1985, was raised by his uncle when his mother died at the age of 4. Before graduating from primary school, Li Hongjun set foot on the society. At the age of 17, he lost his right leg because of an accident on the construction site. After the operation, Li Hongjun returned to junior high school to continue his studies. When he graduated from junior high school, he was already 20 years old.

After graduation, Li Hongjun worked as a worker, an actor in a disabled art troupe, opened a newsstand and delivered a courier. The days when the courier was delivered were very difficult for Li Hongjun. "The main reason is that it is inconvenient to move, and the movement is much slower." What he is most afraid of is to send large goods, because his legs and feet are inconvenient for one person to move.

In 2017, Li Hongjun, who received assistance from the prosthetic orthopedic adaptation rescue project, came to China Rehabilitation Research Center. China Rehabilitation Research Center sent an expert team composed of orthopedic surgeons, prosthetic engineers and rehabilitation therapists to consult him, discuss and formulate the configuration plan, and finally adapt the prosthesis for him.

After several weeks of rehabilitation training, including simple weight bearing, center of gravity shifting, walking inside the bar, walking outside the bar, going up and down stairs, breaking up and down, walking on complicated outdoor roads, etc., Li Hongjun finally walked step by step from not being able to use artificial limbs to being able to walk on crutches and finally walking without crutches.

With the help of artificial limbs, Li Hongjun is more confident. When he first started delivering express delivery, his greatest wish was to have a courier store. In 2018 "double 11", the courier station jointly operated by Li Hongjun and his friends finally opened.

Talent cultivation is a big problem.

The role of prosthetic orthopedic adaptation in the fields of helping the disabled and tackling poverty is undoubtedly very important, but there are still many problems to be solved in order to promote it on a large scale.

First, the funding problem remains to be solved. Compared with congenital heart disease, leukemia and other serious diseases, the urgency of prosthetic adaptation is not so strong. It is difficult to raise funds when raising funds publicly on the Internet, and few charitable organizations launch such projects. The China Welfare Foundation for the Disabled can only solve a limited number of problems.

"We hope to make this project a brand and build a rescue fund pool through fundraising." Chang Da said.

Second, there is a shortage of professionals and equipment. As mentioned earlier, prosthetic adaptation needs to be handled one by one, "equivalent to the difference between ready-made clothes and customization." Liu Jinsong said that, therefore, a large number of professionals are needed, but there are very few prosthetics and orthotists in China and few training institutions.

According to Liu Jinsong, there are more than 2,000 prosthetic orthopedic institutions in Germany with a population of 80 million, but there are no specialized prosthetic orthopedic rooms in some provinces in China.

"When we go to local areas to carry out projects, we bring our own materials and borrow local equipment, but in many places, the technical accessibility is not enough and our staff need to develop them on the spot. Despite this, the requirements are the same, and we emphasize that the staff should have the spirit of artisans. " Liu Jinsong stressed.

-END

Isn’t the blockchain very safe? Why can bitcoins be stolen?

 

A few days ago, Coincheck, one of Japan’s largest bitcoin exchanges, issued a statement saying that the Coincheck server was hacked, and NEM tokens worth 523 million US dollars were stolen. On the same day, Coincheck announced that it would suspend all virtual currency withdrawals and suspend all token transactions except Bitcoin.

 

"Hot wallet and cold wallet"

 

In fact, this is not the first time that something has happened to the virtual currency exchange. Four years ago, Mt. Gox, the world’s largest bitcoin exchange, was hacked. According to the then bitcoin price, the loss amounted to 450 million US dollars, and Mt.Gox also filed for bankruptcy protection because it could not make up for the losses of its customers. In December 2017, Youbit, a Korean virtual currency exchange, was hacked, resulting in the loss of about 17% of its assets and had to file for bankruptcy.

 

Many people are wondering: both bitcoin and tokens are based on blockchain technology. One of the previously claimed features of blockchain technology is security. Since it is safe, why is it stolen?

 

In this regard, Tan Yuan, the core development engineer of the distributed technology intelligent contract, explained that the theft of this exchange has little to do with the blockchain itself. Virtual currency exchanges are generally centralized exchanges, that is, after users recharge to the exchanges, they conduct transactions within the exchanges, but the middle process of the transactions will not be wound up, which has nothing to do with the security of the blockchain itself, but only with the security level of the servers of different exchanges.

 

The truth will soon come out-it is understood that under normal circumstances, Coincheck customers’ virtual currency will be stored in the "cold wallet" of the exchange, that is, it will be encrypted and stored offline, and the funds will be secured by physical isolation. However, Coincheck co-founder Yujie Otsuka said that due to "systemic difficulties", the stolen NEM tokens were kept in a "hot wallet" connected to the Internet, allowing hackers to take advantage of it.

 

To put it simply, the tokens that should have been offline were put online and stolen by hackers.

 

It is necessary to further explain the concepts of "cold wallet" and "hot wallet" here. Generally speaking, wallet is a tool or software for storing and using virtual currency. Then the so-called cold wallet is a wallet that is not connected to the Internet, also called an offline wallet, which is generally a computer, mobile phone, hard disk or paper with a private key written on it. The so-called hot wallet is a wallet that keeps online, also called online wallet. At present, the general view is that a cold wallet is safer than a hot wallet, because it is beyond the reach of hackers to cut off the Internet, and once connected to the Internet, there will be risks. However, the cold wallet also has the situation that hardware damage leads to data loss.

 

[There is no absolute safety]

 

An industry insider said that any strong security mechanism is not absolute. Although the blockchain network is safe in terms of data forgery and tampering, it cannot completely eliminate problems such as leakage, theft, fraud and data privacy leakage.

 

First of all, in the existing security design of Bitcoin, the signature algorithm based on secp256k1 elliptic curve multiplication, SHA-256, RIPEMD-160, and Base58 coding are used in the related operations of private key, public key and address. You don’t need to know what these algorithms are, just know that these algorithms are considered to be very safe at present, but the problem is that if any of the above links are broken in a decentralized financial system like blockchain, the whole system will face collapse. Because, in the past, the centralized system can upgrade and change the algorithm in a short time, but in the decentralized network, it is too difficult to upgrade once. As for whether the algorithm of bitcoin private key will be cracked, it may be necessary to look at the speed of quantum computer industrialization.

 

In addition, the preservation of the private key just mentioned is also a big problem, and whether the private key in blockchain technology is easy to steal remains to be further explored and solved. The private key looks like a string of numbers. You can imagine it as your bank account password. Virtual currency users rarely see the private key directly. Generally, the private key will be stored in wallet files and managed by wallet software. However, whether you use a cold wallet or a hot wallet, as long as others know your private key, they can take away your virtual currency. If you are a holder of virtual currency, you must carefully protect your account private key, which is the only seal that can prove that the money belongs to you. In the past, traditional centralized institutions like banks could freeze related accounts and recover assets to some extent through real-name authentication and other means. But in the world of bitcoin, if you lose the private key, you will have nothing.

 

Therefore, several incidents of theft of virtual currency exchange have also made it clear that the current virtual currency trading environment is far from safe. Whether it is developers, trading platforms or investors holding virtual currency, it is necessary to improve security awareness and security measures.

 

As for how to keep your own virtual currency more safely, some experts suggest that for large virtual currency, it must be stored in an offline cold wallet, and for small virtual currency or virtual currency that needs real-time trading, you can choose a reliable online wallet.

 

So, is the security of online wallet guaranteed? Tan Yuan said that if the code written by the online wallet supplier is normal (there is no interface for uploading the user’s private key), then the wallet is safe. All the data information about the wallet is cached in the local browser cache, and the transaction is sent by using the private key to sign the transaction. The whole process does not involve the transmission of the private key, so there is no leakage of the user’s private key. However, it takes time to test whether the code is formal and reliable.

 

Because the private key is easily confused with the public key or even the address, experts specially remind users of virtual currency to learn relevant knowledge and not to expose their private key in any website, email or chat software, otherwise hackers can easily take away your wealth through these channels.