Hextra virtual currency
1、 Different definitions:
1. virtual currency:
virtual currency refers to non real currency
digital currency:digital currency is an alternative currency in the form of electronic currency. Both digital gold coin and cryptocurrency belong to digiccy
3. Cryptocurrency:
cryptocurrency is a kind of transaction medium that uses cryptography principles to ensure transaction security and control the creation of transaction units
4. Token (token):
a kind of article whose shape and size are similar to currency, but the scope of use is limited and has no currency effect, and its token is the homonym of token in English
Second, the characteristics are different:1; It can also be said that virtual currency is personalized currency. In another way, it can also be called information currency
2. Digital currency:
is an unregulated and digital currency, which is usually issued and managed by developers and accepted and used by members of specific virtual communities
Cryptocurrency:cryptocurrency is based on the decentralized consensus mechanism, which is opposite to the banking and financial system relying on the centralized regulatory system
4. Token (token):
usually needs to be exchanged for money, used in shops, playgrounds, mass transportation and other places, as a voucher to use services and exchange goods
extended data
at present, digital currency is more like an investment proct, because it lacks a strong guarantee agency to maintain its price stability, and its role as a value measure has not yet appeared, so it can not be used as a means of payment. As an investment proct, digital currency cannot develop without trading platform, operating company and investment company
digital currency is a double-edged sword. On the one hand, the blockchain technology it relies on has been decentralized and can be used in other fields except digital currency, which is one of the reasons why bitcoin is popular; On the other hand, if digital currency is widely used by the public as a kind of currency, it will have a huge impact on the effectiveness of monetary policy, financial infrastructure, financial market and financial stability
four unique features of Dahan coin:
first, it is the only Dahan coin in China that is legally obtained through online auction and paid taxes according to law. The operation mode of virtual currency bidding mechanism is fully in line with national laws and regulations
Second, it is the only virtual currency trading platform in China that connects the "third class e-commerce" with a market value of trillion and serves the third class E-commerce mall of 1.3 billion people The first type of e-commerce Taobao C2C, the second type of Jingdong Mall B2C, the third type of transformation space mall B2B2C)
Third, the only domestic virtual currency trading platform with strong competitiveness and complete instry licensing proceres< Fourthly, it is the only virtual currency in China that fully conforms to the relevant national regulations
Hangzhou Hukou settlement can be divided into collective settlement, student settlement, birth settlement, husband and wife settlement, elderly settlement, minor children settlement, talent introction settlement, overseas Chinese settlement, etc Collective settlement of employees of a unit
having worked in the same employing unit in Hangzhou urban area for three consecutive years means that they have signed a labor contract with the employing unit in the urban area (the parent and subsidiary companies with continuous relationship can be regarded as the same employing unit) and have fulfilled the labor contract for more than three years, and have paid social insurance for more than three consecutive years in the employing unit (excluding supplementary payment)
Article 14 of the regulations of Zhejiang Province on the administration of permanent residence registration (for Trial Implementation) the full-time ordinary colleges and universities and ordinary secondary schools (hereinafter referred to as colleges and technical secondary schools) meeting the following conditions shall be approved by the household registration administration department of the public security organ at or above the county level, We can set up student collective households:(1) have the corresponding qualification of academic ecation enrollment
(2) having the qualification of recruiting foreign students (3) there is a special person responsible for the management of collective account Article 16 within one month after the birth of an infant (including those born beyond family planning or out of wedlock), the infant's guardian or household shall preside over the birth medical certificate and report the birth registration to the public security police station where the infant's father or mother's permanent residence is located P>four, husband and wife settle down
, both men and women have been married for 2 years. One party has a legally registered residence in the urban area of Hangzhou and the same household. The other party can apply for a residence in Hangzhou spouse voluntarily and transfer the account to Hangzhou. P>
five, the elderly who seek refuge in the
80 and above are placed in Hangzhou children. They or their children have a legal fixed residence in the urban area, and are not subject to the conditions of "no children outside the country" and "valid residence permit" in Hangzhou. They can voluntarily choose to take residence in Hangzhou children and transfer their registered residence to Zhejiang. p>
6. Minor children who have settled with their parents (except those registered in Colleges and universities) under the age of 18 can join their parents in Hangzhou on a voluntary basis
(7) personnel introction and settlement (P >relax the household registration and migration policy for the introction of high skilled talents, that is, personnel under the age of 45 with professional qualification of technician or above and personnel under the age of 35 with professional qualification of senior worker, who have worked in the same employer in Hangzhou city for three consecutive years and have legal fixed residence in Hangzhou City, can apply to settle down in Hangzhou city
ring the employment period in Hangzhou, advanced proction workers and outstanding migrant workers awarded by various ministries and commissions of the State Council and evaluated by provincial and above instry authorities; They are selected as the city level and above labor models (including those who enjoy treatment), and the top ten innovative youth, moral model and advanced indivials who come to Hangzhou for pioneering work, can apply to settle down in the urban area of Hangzhou
(8) overseas Chinese who are allowed to return to China for settlement shall, within the time limit specified in the notice of approval for settlement, apply to the local police station for household registrationextended information
Article 33 of Zhejiang Province permanent residence registration management regulations (Trial)
allows the transfer of the registered accounts of the relatives and friends of the registered accounts according to the regulations, and the head of the registered account is the settlement guarantor, who is responsible for notifying and urging the registered accounts to declare the registered accounts according to the regulations
Article 37 If a citizen reports to move in outside the city for reasons such as relatives' refuge, job transfer, talent introction, house purchase settlement, investment and tax settlement, it shall comply with the provisions of the state or the province on settlement. The term "moving in from outside the city" as mentioned in these Provisions refers to the moving in of registered permanent residence across districts, municipal districts or counties (cities, districts)
Article 38 freshmen who are admitted to universities and technical secondary schools can voluntarily choose to move their registered permanent residence to the school on the strength of the freshmen's admission certificate. After the opening of the school, the public security organ of the place where the new students move out will no longer handle the proceres for the new students to move out of their registered permanent residence
freshmen admitted to military academies, who are active servicemen, shall cancel their household registration with the freshmen admission certificate; Those who are not in active service shall be dealt with in accordance with the provisions of the preceding paragraph. The freshmen admitted by religious colleges and universities are generally not allowed to go through the household registration proceres
Article 39 When applying for the registration of new students, universities and technical secondary schools shall issue to the local police station a list of new students with the special seal for admission issued by the Department in charge of enrollment and a residence transfer certificate for the new students. Those who have moved their registered permanent residence to the collective student household of the school at the time of enrollment shall not go through the proceres of moving their registered permanent residence out ring the semester, unless otherwise stipulated by the state or the province
Article 40 freshmen of colleges and universities who have moved their registered permanent residence out of their places of origin but have not declared the collective household of the students who have moved into the school within the valid date of the residence transfer certificate shall apply to the police station of the place where they have moved out to resume their registered permanent residence with the residence transfer certificate
When going abroad for physical examination, the local entry-exit inspection and Quarantine Bureau will handle the "international travel health examination certificate" and "international vaccination certificate", and the health officials will ask you to show them when you go abroad
The process of going abroad for physical examination is as follows:1. On the morning of the physical examination, take your ID card, passport, two two inch photos and expenses
2. Routine projects will be allowed to do, and other projects will be recommended by nurses according to the requirements of the school
3. After physical examination, you will get the international travel health examination certificate, which can be obtained within 4 working days after physical examination
Many countries also need to check the AIDS test certificate and vaccination certificate - yellow book "international vaccination certificate", otherwise they will be refused entry In 1986, the State Council forwarded the "several interim provisions of the State Ecation Commission on studying abroad" which stipulates that the health status of all kinds of students studying abroad must meet the requirements of studying abroad, and they must pass the examination of provincial and municipal hospitals and get the health certificate (valid for one year)2. When going abroad for port inspection, the passport should be handed over to the port inspectors together with the passport; When returning to China for entry, the passport shall be submitted to the port inspectors for inspection together with the passport
abbreviation of academic< The axiom of choice is a axiom of set theory, which was formulated by German mathematician Ernst zemello in 1904
physics
alternating current refers to the current whose size and direction change periodically, which is widely used in power transmission (i.e. AC transmission). After Michael Faraday discovered electromagnetic inction, the principle of alternating current has been revealed. In 1891, Nicolas Tesla obtained the patent of "high frequency" (15000 Hz) alternator< In the process of porosity logging, acoustic time difference is used to reflect the curve data of lithology and rock structure. Because acoustic can be written as acoustic, AC is used to refer to this data
attenuation coefficient, also known as attenuation constant and attenuation coefficient, refers to the change or loss of a certain substance or physical quantity (light, sound, electricity, heat, pollutant composition in water body, etc.) under the influence of other physical phenomena (medium density, humidity, temperature, etc.) under one unit measurement. If sound propagates in the air, it will be affected by the viscosity of the air, heat conction (classical absorption) and relaxation effect (molecular absorption) of the vibration of oxygen and nitrogen molecules in the air
chemistry
actinium (element symbol: AC) is a metal element with extremely strong radioactivity. It was discovered in 1899 and exists in pitchblende or uranium bearing minerals, resulting from the decay of uranium. Its atomic number is 89. It belongs to actinide. Its radioactivity is about 150 times that of radium. It can emit blue and white light in the dark. Because actinium content in nature is very low and difficult to extract, it is generally prepared by irradiating thorium-226 with neutrons in nuclear reactors. Its applications include medical tumor therapy and neutron source
acetate, also known as acetate, is a proct formed after the carboxyl proton (h-hydrogen ion) of acetic acid is replaced by other metal cations, such as sodium acetate (NaAc). At the same time, acetic acid itself can also be written as HAC. The molecular formula of acetate is CH3COO - or [c2h3o2] -, which belongs to one of carboxylate ions
acetyl group is an acyl functional group composed of methyl and carbonyl groups in organic chemistry. The molecular formula is ch3-c = o-r or CH3C (o) -, also known as AC -. Acetylation is a chemical reaction in which acetyl groups are introced into molecules by acetylating reagents (acetyl chloride or acetic anhydride are common). Compounds containing acetyl group can react with halogen under alkaline conditions to form haloform, which is called haloform reaction
acetoxy group, a functional group in organic chemistry, with the molecular formula r-o-c = O-CH3
Azodicarbonamide (azobisformamide) is a non-toxic, odorless, incombustible compound, soluble in alkali, insoluble in gasoline, alcohol, benzene, pyridine and water. Its molecular formula is c2h4o2n4, which can be used as food additive and foaming agent
activated carbon is also called activated carbon black. It is black powder or granular amorphous carbon. The main components of activated carbon are oxygen, hydrogen and other elements besides carbon. This is the reason why activated carbon is a hydrophobic adsorbent. In addition to I carbon element, activated carbon also contains two kinds of admixtures: one is chemically combined elements, mainly oxygen and hydrogen, which are left in the carbon e to incomplete carbonization, or in the process of activation, foreign non carbon elements are chemically combined with the surface of activated carbon, for example, when activated with water vapor, the surface of activated carbon is oxidized or oxidized by water vapor; The other kind of admixture is ash, which is the inorganic part of activated carbon. The element composition of several activated carbons is easy to cause secondary pollution.