Mid virtual currency

1.

Yesterday, I went to the electronic reading room. Not long after I plugged in the USB flash drive, the teacher suddenly asked everyone to unplug the USB flash drive. Some students found that all the files in the USB flash drive could not be opened, and there were two more documents asking for money

so everyone rushed to check, as long as the U disk inserted in the school computer were poisoned, large-scale computer poisoning occurred in the evening

a lot of people's information and graation thesis are in the computer. I really feel that hacker's behavior is disgusting. For the sake of money, regardless of the future of students, teachers' lifelong scientific research achievements...

hope to catch criminals as soon as possible and give them severe punishment by law

this virus will scan windows devices with open 445 file sharing port. As long as the user's device is on the Internet, hackers can implant blackmail software, remote control Trojan horse, virtual currency mining machine and other malicious programs in computers and servers

some security researchers point out that this large-scale network attack seems to be deployed through a worm application, and wannacry can spread among computers. What's more terrible is that unlike most malicious programs, this program can replicate and spread on its own in the network, and most of the current viruses still need to rely on the successful users to spread by cheating them to click the attachment with the attack code

the attack has affected 99 countries and as many as 75000 computers, but because the virus uses anonymous network and bitcoin anonymous transaction to obtain ransom, it is very difficult to track and locate the originator of the virus

2.

1. The nature of the two currencies is different: bitcoin is an encrypted digital currency, and Morgan is a typical MLM currency

(1) bitcoin is a consensus network, contributing to a new payment system and a fully digital currency. It is the first decentralized peer-to-peer payment network, which is controlled by its users without a central management organization or middleman

(2) Morgan is a kind of typical MLM currency, they often promise high income, the information of the founding operation team is not open, and they have the background of international large companies, so they put forward a set of seemingly reasonable economic theory

extension data: the harm of

network currency: the extensive application of

1 and virtual currency is also accelerating the rampant network robbers.

(1) in December 2006, the Shenzhen Public Security Bureau announced that it had cracked the country's largest theft network virtual property case, and 11 suspect was arrested. The gang used trojan virus to illegally steal virtual property such as tens of thousands of QQ numbers and QQ coins, and sold stolen goods on the network, making a profit of more than 700000 yuan

(2) in this case, the virtual currency Q was used as the standard of conviction and sentencing, and the police's arrest of illegal elements on suspicion of theft is a special case. The reason is that Tencent has filed with the Guangdong Provincial Price Bureau, and one q is equivalent to 1 yuan

(3) online currency is used more and more widely, for example, it can be used to buy anti-virus software online, vote for super girl, and some websites even use online currency to pay the moderator

2. Outside the business system, because indivial virtual currency has become the "equivalent" of RMB, or even "online RMB", which shows the role of "network hard currency", the illegal gains of illegal gambling can be cashed into RMB, which further promotes online gambling

3. Capital cost = position value * capital rate. When the capital rate is positive, the long pays the short; When the capital rate is negative, short pay long, can you understand?

4. Jing'an is a happy ecation, many data are impossible to have statistics. The best primary school is a primary school attached to a teacher's college, a center

5. The Affiliated School of Jingjiao college
1. Strong teachers
2. Rich and colorful activities
3. Good school spirit
the most important reason: the pursuit of "green enrollment rate", students' burden is very light<

the first one: no math class in grade one
the second one: it takes an area of 1 square meter per capita to do physical exercise
the third one: it doesn't set teaching aids and gets high marks in the middle school entrance examination
the fourth one: it takes important events around it as teaching materials in moral ecation class
www.jecas.e.sh.cn

1. Strong teachers
2. Rich and colorful activities
3. Good school spirit
the most important reason: pursuing "green enrollment rate" ”The burden on students is very light<

WW one strange: the first grade does not have mathematics class
two strange: the per capita area of 1 square meter is still the same body forging
three strange: do not set teaching aids, get high scores in the middle school entrance examination
four strange: moral ecation takes the important events around as teaching materials. w.jecas.e.sh.cn wwww

6. Well, the quality of teaching is good, and it has its own characteristics

7. Some friends said that Jing'an small rise pressure is small, Hongkou pressure.. I don't know how to choose...

8. Is it difficult to test? It's also the school I'm considering. It's a little easier than other foreign language schools..

9. The U.S. Army nomenclature system uses the letter M as the type indication of various types of weapons and equipment, followed by Arabic numerals. Refer to the following examples: 155mm howitzer m777e1 207mm guided rocket shell xm31 main battle tank M1A2 M: model indication, M is the initial letter of model, which is equivalent to Chinese "Shi". M16 rifle is the "Sixteen style" rifle. XM: model indication in the development stage. A: A is the initial letter of alternation. There is no indication of B, C and D. if it is a further upgrade, that is, the letter after a is enlarged from A1 - & gt; A2-> A3.. step by step. E: The test type, after the completion of the test, was replaced by a, m777e1 - & gt; M777a1, e are the initial letters of experimental. In addition to the system number, many important weapons and equipment have popular names, M1A2 tank is "Abrams" (formerly known as Abrams), m777e1 is "155 light howitzer" (formerly known as lightweight 155mm howitzer, abbreviated as lw-155), xm31 is "guided Multiple Launch Rocket System" (formerly known as GMLRS)