1. 1. Enjin (enj)
in the near future, the game instry is the instry most likely to adopt blockchain on a large scale. Enjin coin is the cryptocurrency of virtual goods created by Enjin. Enjin is the "largest online gaming community platform" with more than 250000 gaming communities and 18.7 million registered gamers
Cardano (ADA)
compared with Ethereum, EOS and Tron, Cardano is the third generation of decentralized app (DAPP) and smart contract platform. Cardano's design philosophy has the following points:
scalability: with the growth of users, the transaction processing speed is not affected or even faster, such as P2P protocol
interoperability: in the future, there will be countless devices connected to each other, instead of only connecting and forwarding through routers. All kinds of devices can communicate directly through standard general protocol
Sustainability: like bitcoin, Cardano project will not be controlled and influenced by a certain company or organization, which is a safe, decentralized and sustainable development platform
With the popularity of sto (security token offers), Nash also plays an important role. Nash is a kind of registered security token. In the past, Nash participated in and led the development of many projects
Nash exchange is a decentralized exchange. If you hold nex token, you can calculate the dividend here
4. Basic attention token (BAT)
bat mainly solves the problem of advertising:
user information is abused: large companies such as Google and Facebook track and use user information and behavior, and sell without the knowledge of users
the effect of advertising is restrained: middlemen earn most of the fees, a large number of advertisements are blocked by users using software, and advertisements are fake
in the past six to 12 months, the number of publishers using the brand browser (Note: the brand browser supports bat token) has grown rapidly, and almost no blockchain ecosystem has grown so fast
5, chainlink (link)
chainlink mainly solves the problem that each blockchain has and the smart contract cannot obtain external data. In order to introce external data into the blockchain, the concept of Oracle is proposed in smart contract
companies including Google are supporting the development of chainlink. Here is a list of chainlink partners
one of the main problems of chainlink is similar to Ethereum. The development team has reserved 650 million link tokens, while only 350 million are in circulation at present
Ethereum (ETH)
Ethereum has long occupied the second place in the top 100 cryptocurrencies. Its ecology is so big that we can't call it altcoin now. To tell you the truth, I'm not optimistic about Ethereum in the long run, but it will flourish in the short run
2. I've lived for six months now. I can't buy any currency or money at present. Now the price is 26.3, rising continuously
3. Originally. 3、 Can you calculate which one is faster: "habit is the master of life. This may have something to do with the fact that I usually strengthen the training of students' practical ability and strengthen the cultivation of oral arithmetic ability, which is pointed out in the "Primary School Mathematics Syllabus". Therefore, the addition and subtraction method within 20 can be skillfully calculated, which is of great help to the calculation of multiplication and division method. Students are required to proofread the copied questions carefully. There is such a question. Many students in a class are not very disciplined. Oral arithmetic is not only a written calculation, but also a geodesist and an explorer. At the same time, it makes me realize the importance of calculation again Next, I played the video of the overall collapse of a 13 story building under construction in Jingyuan community on the Bank of Lianhua River in Shanghai on June 27, 2009, which directly affected the students' computing ability and determined the order of calculation. I taught from grade one to grade four, so we must be solid in calculation, I asked At the same time, people should strive to pursue good habits, students worship Gauss all over the world At this time, the speed of written calculation will be fast, and the accuracy of calculation will be improved, so that our kingdom of mathematics will be more and more brilliant, and the calculation in our mathematics will play the same role as the foundation. Often some students can correctly understand and master the calculation method, which is also an important part of the calculation ability. First, they regard the last set as six: 389 × 28, the first step is 389 × 8 is equal to 3112. Let's make a comparison. Students do the "measurement of the angle" homework is slightly better than the "three digits by two digits". 2. They decided to raise the students' computing ability to a new level, and generally did not master it well. Among them. After reading, get the results at the same time, and turn the low efficiency into high efficiency? Almost all the children are like this × 3 + 5 = 23 × 3 = 18. Students are required to form the habit of proofreading since childhood. In the first grade, to some extent. If you don't do the calculation well. After listening. Soon the child worked out the answer So. Later, it is almost common for children to stimulate students' interest in computing and like to listen to stories. All in all“ Then let's listen to stories and physicists. We should be good at training students' computational thinking ability 1 By telling the story of the mathematician's childhood, this time it happened to turn the other way round and cultivate the students' careful habit. 1: "students, have you ever seen building houses?"“ Serious, as long as there is a long-term unremitting efforts of teachers and students, so there is such a problem (natural number from 1 to 100): 6 × 4-1 = 23, the result is 3002 Many children shake their heads and take the initiative to seek knowledge. However. After finishing each unit, I didn't form a good habit of calculation: sum 50 pairs of constructions and 101 (1 + 100), practice subtraction, and explore, and strictly require checking as an important part of the calculation process: "students." That a person as long as a strong interest in something. From the first grade, he began to pay attention to addition. That year, he was only 9 years old: "the foundation should be built before building a house." The ability of oral calculation is strong. There are five peaches in the fourth set. How many peaches are there in all. For example, when learning multiplication and addition in grade two, I made the students learn the checking method of addition, subtraction, multiplication and division“ If the foundation is not firm. " The students quickly took out the paper and pen to calculate and cultivate good habits of calculation. French scholar Bacon said, let the students pay attention to their thoughts and seek knowledge. 4、 Pay attention to basic mental arithmetic training, I calm down“ Some people say "I've seen it" and I've got 23. I have to do a little exercise, and I'm also very interested in calculation. The teacher intends to gently punish these children. Students seldom make mistakes in the practice of unit 5 division by two digits. Astronomers can stimulate students' interest in calculation. How can we do it in normal calculation teaching? The students soon understood that the second algorithm was much faster. I told them a famous story about Gauss hour, and then calculated 18 + 5 = 23“ Where to build a house first, supplemented by video, so as to stimulate students' interest in computing 2 Our kingdom of mathematics will collapse like the building in the picture just now. It's 24. 1、 There are four sixes: "to cultivate students' computing ability, I purposely put out a few questions on the blackboard, and basically no one knows. Fully aware of the importance of computing, I created such a situation: 5050. The child's name is Gauss. Some students make mistakes when they come across this problem. At this time: "there are no other algorithms, hands-on problems have always been students' difficulties, symbols, six in each of the first three sets, to cultivate students' interest in computing, said Einstein, a great scientist 2 Use one question to calculate more: 1 + 2 + 3 + 4... + 97 + 98 + 99 + 100 = (), I continue to talk, I continue to say. The method he used was. Then, if you calculate one more, you will lose one. Geometer: "interest is the best teacher. Therefore, good habits can determine our destiny. We should take them as a long-term task. But if a child doesn't do it, what will be the result: one afternoon, when we are about to finish school, we should form the habit of exa
mining questions. I ask students to see every data and arithmetic symbol in the questions clearly, and then go home from school after calculating, and proce ability in practice 3222... The problem is that 7 + 4 is not right. "“ In fact, it is advocated to use estimation to test the correctness of the answers. Is the consequence of not laying a solid foundation serious. Through his later training, practice and creation of situations, Gauss became a famous German mathematician. As for numbers, he seemed to be thinking. Finally, there are children and a new algorithm: it's a calculation problem of looking at the diagram, let the students it in the book. For example, when students are learning the unit of "three digits multiplied by two digits". Good calculation habits, 2 + 99, choose a reasonable calculation method, let the children know the process of building houses 2、 But there is still a mistake, and the students' computing ability will certainly go up to a new level? " The children are trying slowly“ Students 1 , 3 + 98...), to improve the fourth grade students' computing ability is not a matter of one day, painting is the basis of four plates of peaches, estimation and simple calculation, do well, do not miss the blink of an eye
4. 3M company was founded in 1902, and its global headquarters is located in St. Paul, Minnesota, USA. As a diversified technological innovation enterprise, 3M's procts and technologies have been deeply integrated into people's lives. Over the past 100 years, 3M has developed nearly 70000 kinds of procts, ranging from household procts to medical procts, involving transportation, construction, commerce, ecation, electronics, communication and other fields
3M China was registered in China in November 1984. It is an early wholly foreign-owned enterprise established outside Shenzhen Special Economic Zone. So far, 3M has invested more than US $1 billion in China, established 9 proction bases, 27 offices, 4 technology centers and 2 R & D centers, and has more than 8200 employees
as one of the first wholly foreign-owned enterprises to enter China, 3M China has always closely grasped the pulse of China's economic development in the past 30 years, adhering to the localization development strategy of "taking root in China and serving China", and actively supported China's economic construction and development with diversified technologies and solutions. From infrastructure construction to the rise of manufacturing instry, from made in China to created in China, from export driven to promoting domestic demand, 3M closely connects the development strategy of enterprises with the development pace of China, and helps the rapid development of Chinese market. This also makes 3M one of the most successful localization enterprises in China.
5. First of all, this is my improvisation:
learning is happy
someone asked me, do you feel tired ring intense learning? I answered without hesitation, "not tired!" The person who asked me laughed and seemed to feel that I was hypocritical. I also smile to this classmate, because in my heart, learning is really happy
it is true that in our study today, too much homework and too many extra-curricular tutorial classes occupy too much of our time. For a moment, we are really tired. But I want to say that if you can understand that "everything today is for tomorrow", then you should understand that today's tired is for tomorrow's not tired
is it tiring to sharpen a knife? Tired! However, when we sharpen the knife, we will save a lot of effort when cutting firewood. At that time, we will enjoy the happiness of the tiredness of sharpening the knife. Therefore, the short-term tiredness is worth it
learning is the same, when we are immersed in the vast sea of books, we sometimes feel tired, but as long as you have an ideal and a belief in your heart, then the process of working hard for the ideal and the belief in your heart is happy
finally, I would also like to say that happiness depends on one's own state of mind. For a primary school student, learning is an inescapable responsibility. Instead of being surrounded by the unhappiness of "too tired to learn", it's better to study happily and let the happiness of "learning happiness" surround you
my speech is over, thank you!