Little ant stock and Ethereum

1.

blockchain includes public blockchain, joint (instry) blockchain and private blockchain. Public chain point-to-point e-cash system: bitcoin, smart contract and decentralized application platform: Ethereum

blockchain is a new application mode of distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm and other computer technologies

blockchain is an important concept of bitcoin. In essence, it is a decentralized database. At the same time, as the underlying technology of bitcoin, it is a series of data blocks generated by using cryptographic methods. Each data block contains a batch of bitcoin network transaction information, Used to verify the validity of its information (anti-counterfeiting) and generate the next block

extended data

according to the different degree of blockchain network centralization, three kinds of blockchains under different application scenarios are differentiated:

1. The blockchain with the whole network open and without user authorization mechanism is called public chain

2. The authorized nodes are allowed to join the network, and the information can be viewed according to the authority. It is often used in the inter agency blockchain, which is called alliance chain or instry chain

3. All the nodes in the network are in the hands of one organization, which is called private chain

alliance chain and private chain are also called licensing chain, and public chain is called non licensing chain

blockchain features

1, decentralization. Blockchain technology does not rely on additional third-party management institutions or hardware facilities, and there is no central control. In addition to the self-contained blockchain itself, each node realizes information self verification, transmission and management through distributed accounting and storage. Decentralization is the most prominent and essential feature of blockchain

2. Openness. Blockchain technology is based on open source. In addition to the private information of all parties involved in the transaction is encrypted, the data of blockchain is open to everyone. Anyone can query blockchain data and develop related applications through the open interface, so the information of the whole system is highly transparent

3. Independence. Based on consensus specifications and Protocols (similar to various mathematical algorithms such as hash algorithm used by bitcoin), the whole blockchain system does not rely on other third parties, and all nodes can automatically and safely verify and exchange data in the system without any human intervention

4. Safety. As long as 51% of all data nodes cannot be controlled, the network data cannot be arbitrarily manipulated and modified, which makes the blockchain itself relatively safe and avoids subjective and artificial data changes

5. Anonymity. Unless there are legal requirements, technically speaking, the identity information of each block node does not need to be disclosed or verified, and the information can be transferred anonymously

2.

1. The national translation qualification examination (CATI)

CATI is the most valuable translation certificate at present, and the evaluation of professional title can play a role. Sponsored by the Ministry of human resources and social security of the people's Republic of China (hereinafter referred to as the Ministry of personnel), it is the determination of the bilingual translation ability and level of the test participants in interpretation or translation

CET-3, graated from non foreign language major, passed CET-6 or college level, and has some practical experience in translation and interpretation

Level 2, graate of non foreign language major or undergraate of foreign language major, with 3-5 years of practical translation experience

With 8-10 years of practical translation experience, he is an expert in bilingual translation of a certain language

There are seven languages in the test, including English, Japanese, French, Arabic, Russian, German and Spanish

There are four levels, namely: senior translator; First level interpretation and translation; Second level interpretation and translation; Three levels of interpretation, translation. Among them, senior translators are obtained through evaluation, first level interpreters and translators are obtained through the combination of examination and evaluation, and second and third level interpreters and translators are obtained through examination

There are two major categories: translation and interpretation, and interpretation is divided into consecutive interpretation and simultaneous interpretation

2. Shanghai Certificate in foreign language interpretation (SIA)

jointly organized by the Organization Department, the personnel department and the Ministry of ecation of Shanghai municipal Party committee, the test center is Shanghai, and the corresponding level is divided into English high, English Chinese and Japanese interpretation. Advanced English, CET-6 or equivalent; Intermediate English, CET-4 or equivalent; Japanese interpretation, equivalent to the Japanese Proficiency Test Level II

Assessment Language: English, Japanese

cost: 210 yuan each for written and oral test of advanced English interpretation; The written test and oral test are 180 yuan each

among the translation certificates, CATI (translation professional qualification test) of the Personnel Bureau has the highest gold content, followed by Shanghai's oral and written translation qualification test, which is suitable for white-collar workers

3. National Business English translation qualification certificate (ettbl)

sponsored by China Federation of Commerce, college students and undergraates majoring in Business English (including international economy and trade, foreign trade, finance, international finance, marketing, international marketing, international business, tourism management, e-commerce, business administration, etc.)

The level of Mastering Business English can be divided into five levels: junior, intermediate, senior, translator and senior translator

Junior: be able to have general business English conversation in business communication. Be competent for the employees of foreign-related enterprises and the same level of enterprise export personnel, hotel receptionists, store cashiers, etc

intermediate: be able to interpret and translate in general business talks and business activities. Be competent for the staff of foreign enterprises, secretaries and office supervisors of the same level

Advanced: be able to interpret and translate in general business meetings and foreign affairs business activities. Able to be competent for the director of foreign-related enterprises and the same level of enterprise manager assistant, enterprise manager, etc

translator: be able to perform complex interpretation and translation in large-scale business meetings, and be competent for full-time business English translation

Senior translator: able to interpret and translate in various international conferences. In the process of interpreting, they can do consecutive interpretation and simultaneous interpretation; In the process of translation, we should translate the documents and professional materials of various foreign affairs and business activities. Be able to do all kinds of complicated translation and interpretation work in international business conference, and solve all difficult problems in Business English

National Business English test (cnbect)

the national international business English proficiency certification examination, organized by China Society for international trade, Ministry of Commerce of the people's Republic of China, was officially launched in 2006. The first examination was held in April 2007 and was certified by the Ministry of Commerce of the people's Republic of China

this test covers both language and business. In terms of language, test the ability of listening, speaking, reading, writing and translating in international business environment; Business involves common business in international business, highlighting international trade

The examination is divided into three levels. Every year on the second Saturday and Sunday of May, the national examination of International Business English (Level 1) is held. There are five items in the written test (listening, reading, translation and writing) and oral test

The United Nations Institute for training and Research (UNITAR) was established in 1965 in accordance with the resolution of the general assembly of the United Nations on December 11, 1963 (XVIII)

is the only international language professional training and certification system in the Asia Pacific region certified by the CIFAL center of the United Nations Institute for training and research. Unlpp training and certification examination will be graally implemented in China and abroad according to the major, language and level, which is composed of two parts: training and certification

3. What game and what company is not a global game department management, if Tencent and Xunlei are divided into two companies, currency is divided into two

4. Hello, great Xia:
first go to the main city to collect copper mines. At first, if you collect high-grade mines directly, it's OK, but there will be waste
if it helps you, please accept it

5. This unbounded coin is very good. Whether it can surpass Ethereum depends on the application of unbounded coin.