Reflection on virtual currency
unlike all currencies, bitcoin does not rely on a specific currency institution to issue. It is generated by a large number of calculations based on a specific algorithm. Bitcoin economy uses a distributed database composed of many nodes in the whole P2P network to confirm and record all transactions, and uses cryptography design to ensure the security of all aspects of currency circulation. The decentralized nature and algorithm of P2P can ensure that it is impossible to artificially manipulate the value of bitcoin through mass proction. The design based on cryptography can make bitcoin only be transferred or paid by the real owner. This also ensures the anonymity of money ownership and circulation transactions. The biggest difference between bitcoin and other virtual currencies is that the total amount of bitcoin is very limited and it has a strong scarcity
according to the notice on preventing the financing risk of token issuance, there is no approved digital currency trading platform in China. According to China's digital currency regulatory framework, investors have the freedom to participate in digital currency transactions at their own risk
warm tips: the above information is for reference only. Before investing, it is recommended that you first understand the risks existing in the project, and understand the investors, investment institutions, chain activity and other information of the project, rather than blindly investing or mistakenly entering the capital market. Investment is risky, so we should be cautious when entering the market
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On March 2, Hurun Research Institute released the 2021 Hurun global rich list. Elon Musk of Tesla became the world's richest man for the first time, with a total wealth of 1.28 trillion yuan. The richest man in Asia is Zhong Xiao, the 67 year old "king of bottled water". In Hurun's words, "it's hard to imagine that the first Chinese entrepreneur to enter the top 10 in the world is not Ma Huateng or Ma Yun, but Zhong Xiao, a 67 year old man from Zhuji who sells water."
, despite the influence of COVID-19, this year's biggest increase in wealth has been in the past ten years. Over the past year, the stock market boom and a large number of new listed companies have created eight new billion dollar entrepreneurs every week. " Hu Run, chairman and chief research officer of Hurun Baifu, said
According to the list ofextended data
this year, 3228 US $1 billion entrepreneurs from 2402 companies in 68 countries were listed, 412 more than last year, a record high. Among them, Asia's billion dollar entrepreneurs account for 51% of the world's total wealth, accounting for 45% of the world's total wealth. For the first time, it is more than the sum of the rest of the world
"in the past year, China has added more new faces than the rest of the world combined, and has far surpassed the United States, becoming the first country in the world with 1000 known billion dollar entrepreneurs, with 1058."
who is the richest man in the world? This is the topic that people care about when Hurun rich list is released every year. This time, Elon Musk, 49, won the title of the world's richest man. Compared with last year, his wealth increased by nearly one trillion yuan to 1.28 trillion yuan, equivalent to an increase of nearly one billion US dollars every two days
"Elon Musk is the fourth richest man in the world in the past decade, and at 49, he is the youngest richest man in the world. Bill Gates ranked first four times, Jeff Bezos ranked first three times, and Carlos Slim ELO of Mexico ranked first two times. "
the richest man in Asia is Zhong Qiong, the boss of Nongfu Shanquan, who ranks seventh with a fortune of 550 billion yuan, becoming the first Chinese entrepreneur to enter the top ten of the global rich list
Many people are familiar with bitcoin. Bitcoin and other cryptocurrencies belong to virtual investment goods . Since it is the normal situation for investment goods to go up and down. This time, there was a big drop and a market crash, but this does not mean that bitcoin will be completely out of the stage of investment procts
before that, bitcoin has been rising for more than a year in a row. Although many investors have expected bitcoin to adjust when it is bound to fall, the collective collapse of cryptocurrency is not common, and such a huge decline is even rare, which has attracted the attention of many investors and netizens. The reasons for the collapse of bitcoin and other cryptocurrencies are graally emerging
The behavior of
has also seriously stimulated ordinary investors. There are many people who believe that this behavior contributed to the aggravation of the collapse of cryptocurrency
despite all kinds of adverse news, people are also full of doubts and scrutiny about the future of cryptocurrencies such as bitcoin, but as long as bitcoin as an investment proct, its profit effect exists, it will still attract countless investors. The collapse will also cause people to reflect on whether we need to retain more reverence for value and margin of safety
inquiry is an important means to satisfy children's thirst for knowledge, from which children can obtain a great sense of satisfaction, excitement and self-confidence. At the same time, inquiry is also an important way for children to acquire knowledge. The knowledge acquired through self exploration is constructed by children themselves, and what children really understand and believe belongs to children. During the activity, the teacher provided foam, plates, plastic sheets, plastic caps, big leaves and other materials, shapes and sizes of various auxiliary materials, so that children can experience different effects of various materials and materials in the ups and downs of coins ring the operation and comparison, and get the materials of building blocks, foam dishes, plastic caps and other materials to help coins float on the water surface. The perceptual experience of "coins floating on the water" can not be helped by cardboard, tree leaves and other materials, which improves children's understanding of the properties of coins and other objects. Children operate materials, interact actively, do in play, say in play, learn in play, fully mobilize the enthusiasm and initiative of children's learning, so as to really play the dominant role of children and teachers
in addition, children communicate their experimental results and records with their peers through hands-on experiments, brain thinking and hands-on recording, which reflects the joy of sharing experience and proces a positive learning attitude of "I want to do, I can do".
when I made a mistake this time, I thought a lot of things and reflected on a lot of things. I was very remorseful and angry. I broke the iron law of the school, deeply realized the seriousness of my mistakes and felt ashamed of my mistakes. As soon as the school started, I repeatedly stressed the school rules and discipline, and reminded students not to violate the school rules. However, I didn't pay attention to the words of the school and the teachers, didn't pay attention to the words of the teachers, didn't pay attention to the important issues issued by the school, and took them as a deaf ear. These should not be. It's also disrespect for teachers. We should keep in mind what the teacher said and the school rules and regulations issued by the school. Afterwards, I calmly thought for a long time, the mistake I made not only brought trouble to myself, delayed my study. What's more, this kind of behavior of mine has caused a very bad influence on the school, destroyed the management system of the school, and also caused a bad influence among the students. Because of my own mistakes, it may cause other students to follow suit, affect the discipline of the class and grade, and destroy the discipline of the school. Moreover, it is also a kind of injury to the teachers and parents who have great expectations for themselves, and it is also a kind of irresponsibility to the parents of other students. Every school hopes its students to be excellent in both character and learning, develop in an all-round way, establish a good image, and make our school have a good image. Every student also hopes that the school will give them a good learning environment to study and live. Including myself, I also hope to have a good learning environment, but a good learning environment depends on everyone's joint maintenance and establishment. However, I made a mistake this time to destroy the good environment of the school, which is very inappropriate. If every student makes such a mistake, then there will not be a good learning environment, I've been at home for half a month. I've thought a lot about it and realized that I've made a serious mistake. I know that I should pay for the mistake I've made. I'm willing to bear the responsibility that I can't afford, especially for the person ecated in a key university, We should bear the main responsibility for this mistake. I sincerely accept criticism and am willing to accept the treatment given by the school. Sorry, teacher! I committed a serious problem of principle. I know that the teacher is also very angry about my breaking the school rules. I also know that it is the most basic responsibility and obligation for students not to violate school rules and discipline, and to do their own thing well. But I didn't even do the most basic. Now, I deeply regret my big mistake. I will take this violation of discipline as a mirror, constantly check myself, criticize and ecate myself, and consciously accept supervision. I want to know shame and alert, know shame and forge ahead, mend the sheep when they are dead, turn shame into power, and study hard. I also want to improve my ideological understanding and strengthen responsibility measures through this incident. I still want to study hard. Learning is the most important thing for me. It is very important for my future survival and employment. I am very young now, and I still have the ability to work hard. I also want to work hard again. I hope the teacher can give me a chance to be a good student. I will make a good change and study conscientiously. I will live a full life. In this way, I will also delay the course at home. The school course is very tight and it will be very hard to learn. In the future, I will study hard, I remember when I first entered the school, the head teacher and the deputy head teacher had great expectations for me, and they could accept my study, but there were some problems in discipline. Under the iron law of the school and the environment of strict school discipline, I made such a serious mistake, and the school should punish me severely. I don't know how many times I said aloud, principal, Teacher, I'm wrong. I'm wrong. Mom, Dad, I'm wrong. I'm wrong. In this half month, I still get up on time every day. I have lived in school for nearly two years. I have deep feelings for the school. In the future, I will take on a new look in the school. I will not be in the dark for the school, grade and my head teacher. No matter in the study or in other aspects, I will use the school rules to be strict with myself, I will seize this opportunity. Take it as the turning point of my life. The teacher wants us to become the pillars of society. So I will make more efforts in my school life in the future. I will not only learn the knowledge that the teacher teaches us well, but also learn how to be a man. Making such a mistake is also a huge blow to the expectation of my parents. The parents work hard to earn money, So that we can live better than others, so that we can devote ourselves to learning. However, the mistake I made went against the wishes of my parents and was also a denial of their hard work. I am very ashamed of it. I believe the teacher can also know that I have a deep repentance attitude towards this incident. I believe my repentance heart. My behavior is not a challenge to the teacher's discipline, but a temporary slip of my own. I hope the teacher can forgive my mistake, and I will guarantee you that it will not happen again. For all this, I will further sum up and reflect deeply. I sincerely hope that teachers will believe that I can learn lessons, correct my mistakes and redouble my efforts to do well in the future. At the same time, I sincerely hope that teachers can continue to care about and support me, and deal with my problems as appropriate.
recently, the virtual currency dog coin has aroused widespread concern of the public. In the coin circle, dogecoin, which was born in 2013, may be & lt; Community Governance; It's the best case. It was born in a joke, because the expression pack quickly became popular, but also by virtue of tips, charity, reward and grass-roots culture and other keywords remain today. The founder of doggy coin announced his withdrawal from the coin circle four years ago. However, e to the strong community power, dog coin has become one of the few survivors of the early digital currency. To this day, it still has a large number of fans. It looks like it's putting & quot; Decentralization & quot; Play to the full. But at the same time, it is manipulated by people, the future is unclear and other issues, also began to make people reflect on the drawbacks of community governance model< however, there are many uncertain factors in the virtual currency market, among which virtual currency and virtual currency are very risky in the process of transaction, and the appreciation space is not particularly clear. So Xiaobian thinks that the virtual currency dog coin is not worth buying, and the risk is particularly high{ RRRRR}
Three: the value of virtual currency is unstable
because now the world is still in the era of US dollar settlement, everything should be linked to us dollar, but the relationship between this virtual currency and US dollar seems not particularly large, so the value of this virtual currency itself is very unstable
the general process of inquiry begins with finding and asking questions. After finding the questions, make hypotheses about the answers to the questions according to your existing knowledge and life experience. Design the scheme of inquiry, including the selection of materials, design methods and steps, etc. according to the scheme of inquiry, get the results, and then analyze whether the results are consistent with the hypotheses, Therefore, after drawing a conclusion, we need to reflect on the whole process of inquiry. The general methods and steps of inquiry experiment are as follows: putting forward problems, making assumptions, making plans, implementing plans, drawing conclusions, and so on Expression and communication.
the common methods of scientific inquiry include observation, experiment, investigation and data analysis.
observation is a basic method of scientific inquiry. Scientific observation can be done directly with the naked eye, with the help of magnifying glass, microscope and other instruments, or with the help of cameras, video recorders, cameras and other tools, Sometimes measurement is needed; The observation should be comprehensive, meticulous, realistic and recorded in time; Plan and be patient; We should think positively and record in time; The design of the experimental scheme should be closely around the questions and hypotheses put forward. When studying the influence of a condition on the research object, the experiment with the same conditions except for the different conditions is called control experiment; Collect information related to the problem; Making assumptions; The experimental scheme was designed; Carry out the experiment and record it; Analysis of experimental phenomena; In the process of investigation, sometimes because the scope of investigation is very large, it is necessary to select a part of the respondents as samples. In the process of investigation, it is necessary to record truthfully. The results of the investigation should be sorted out and analyzed, Sometimes it is necessary to use mathematical methods for statistics. Collecting and analyzing data is also one of the common methods of scientific inquiry. There are many ways to collect data. Go to the library to consult books and newspapers, visit relevant people, and get online. The forms of data include text, pictures, data, audio-visual materials, etc, Find answers and explore clues from them