Why can't digital currency exchange for gold and foreign exch

1. Can also be used, there is a digital currency does not mean that the RMB can not be used

2. This is really true, and the income is quite high

3. Can gold digital currency be invested? I think gold, digital currency, can be invested. For many years, gold has been increasing in value. So I think we can invest.

6. The digital currency should be linked to gold, and then, for example, in exchange for the US dollar, it is linked to gold. The currency fluctuates up and down with the appreciation or depreciation of gold.

7.

For atoms: the number of electrons and protons is the number of elements. For example, h is element 1, which contains one electron and one proton

The neutron number should know the mass number. If you haven't learned this yet, the mass number can be simply regarded as the relative atomic mass, the number of neutrons = the relative atomic mass minus the number of protons. For example, if O is element 8, it has eight electrons and eight protons. Relative to the atomic mass of 16, the number of neutrons = 16-8 = 8

for ions, protons and neutrons are exactly the same as above, and electrons change, gain more and lose less. The method is similar

the number of electrons outside the nucleus = atomic number = proton number inside the nucleus = nuclear charge number (the number of electrons outside the nucleus of an ion = atomic number (sum) - charge number)

the maximum number of electrons held by each electron layer is 2n ^ 2 (n is the electron layer number). The number of electrons in the outermost layer is not more than 8 (when the k layer is the outermost layer, it is not more than 2). There are no more than 18 electrons in the second outer layer and 32 electrons in the last three layer

the extranuclear electrons are always arranged in the electron layer with the lowest energy first, and then from the inside to the outside, they are arranged in the L layer and then in the m layer. The above four laws are interrelated and cannot be understood in isolation

extended data:

neutrons exist in neutron stars as clusters (neutron stars are one of the few possible endpoints after supernova explosions e to gravitational collapse at the end of star evolution.) In the middle. The neutrons in the solar system mainly exist in all kinds of nuclei, and the neutrons in the elements are very rare β Decay is a change in which the neutron in the element releases an electron to become an element of the previous element sequence

Neutrons can be classified according to their velocities. High energy (high-speed) neutrons have the ability to ionize and penetrate deep into matter. Neutrons are the only ionizing radiation that can make other substances radioactive. This process is called "neutron excitation"“ "Neutron excitation" is widely used in the proction of radioactive materials in medical, academic and instrial fields

High energy neutrons can travel very long distances in air. Neutron radiation needs to be masked by hydrogen rich materials, such as concrete and water. Nuclear reactor is a common neutron source, and water is used as an effective neutron shield

arrangement rule:

1. The electrons are arranged in different layers from the nucleus to the nucleus, and the energy is from low to high

The maximum number of electrons in each layer is 2n2 (n is the number of electron layers)

There are no more than 8 electrons in the outermost layer (no more than 2 in the first layer), no more than 18 electrons in the second outer layer and no more than 32 electrons in the last three layers

In general, the electrons are always in the lowest energy layer, that is, the first layer, when the first layer is full, then the second layer, when the second layer is full, then the third layer

8. Box (enterprise digital asset safe) is a set of enterprise digital asset security solutions based on block technology. Based on the axiomatic technology of blockchain, cryptography, communication security and other fields, it realizes the seamless connection between technologies, and fundamentally solves the instry pain of private key theft and instruction tampering. At present, box mainly serves digital asset exchanges, digital asset investment institutions and related entrepreneurial teams.

9. Digital currency is similar to gold in the gold standard era. Taking digital currency as legal currency actually means that the institutional arrangement of financial system will return from partial reserve system to full reserve system. Just imagine what would happen if all our banks could not make loans? What happens when money no longer has time value? In our memory, it is probably the time before the reform and opening up when the central bank relied on instructions to do everything and there were no commercial banks in the whole society.

10. Of course, the military's medical system is very complete. Soldiers don't need money to see a doctor in the military hospital, but some self financed drugs still need to be paid. Soldiers go to local hospitals to see a doctor, not free of charge, but in the end, the state will give them reimbursement< Please refer to: Regulations on the management of medical expenses of servicemen and their families
Chapter I General Provisions

Article 1 in order to strengthen the management of military medical expenses, make rational use of health resources, and protect the health rights and interests of servicemen and their families, these Regulations are formulated in accordance with the military medical security system reform plan
Article 2 the term "soldiers" as mentioned in these Provisions refers to officers, civilian cadres, non commissioned officers, conscripts, cadets in active service of the Chinese people's Liberation Army, as well as retired and retired cadres and non commissioned officers in military administration
the military family members mentioned in the regulations refer to the spouses, children and parents who are approved by the organization to support the military
Article 3 servicemen and their families should seek medical treatment in accordance with the prescribed medical system. Within the scope of reasonable medical treatment, servicemen should enjoy free medical treatment; Military family members who meet the prescribed conditions shall enjoy preferential medical treatment. If there are other provisions in these Provisions, the provisions shall prevail
Article 4 the medical expenses of soldiers and their families, which are expended according to regulations, shall be listed in the medical expenses
all units should strengthen the management of health expenses, strictly implement the relevant provisions of medical expenses management, and shall not intercept or misappropriate them
Article 5 military medical institutions should strengthen the management of medical expenses, establish and improve the management system, clearly state the standard of medical charges, and accept supervision and inspection
military medical institutions must issue a detailed list of all charging items to patients
Chapter II Management of general medical expenses of soldiers
Article 6 soldiers who are treated in military medical institutions and meet the requirements of reasonable diagnosis and treatment scope and medication scope shall enjoy free medical treatment
the scope of reasonable diagnosis and treatment includes general diagnosis and treatment items, special medical items and major diseases; Among them, the general diagnosis and treatment items refer to all the diagnosis and treatment items implemented by military medical institutions, except for the diagnosis and treatment items that are paid by indivials according to the regulations (see the annex), special medical items and major diseases
rescuing and treating soldiers injured in war or on ty is not limited by the scope specified in the preceding paragraph
for rescuing critically ill soldiers beyond the scope of rational drug use, those approved by medical institutions will be given free of charge; If it is not approved, the expenses shall be borne by itself
the medical examination and treatment for military personnel, including medical equipment purchased with joint venture, loan and other self raised funds, as well as new technologies and new therapies researched and developed, shall not be charged except for the items of diagnosis and treatment which are paid by indivials according to the appendix
Article 7 the medical expenses incurred by a soldier in a military primary medical institution shall be paid from the medical expenses of his unit (hereinafter referred to as his unit)
the medical expenses of officers, civilian cadres, retired and retired cadres in active service and military management in primary out-patient clinics are managed by accounting; If the medical expenses exceed the standard of medical expenses for personnel and are within the scope of reasonable medical treatment, the medical expenses of the unit shall be solved as a whole
Article 8 the outpatient expenses and hospitalization expenses of soldiers in military hospitals (excluding division, brigade hospitals or equivalent medical institutions, the same below) and sanatoriums shall be determined by the general logistics department according to the outpatient number and hospitalization days within the total amount of funds, and supplied according to the standard; The insufficient part shall be made up by the hospital and sanatorium with the medical service income retained according to the regulations. For hospitals and sanatoriums with special support tasks, the amount of funds approved should be appropriately increased
Article 9 the medical consumption of soldiers in military medical institutions shall be recorded according to the medical price stipulated by the local price department, and the statistics and reports shall be made according to the regulations
Article 10 soldiers suffering from acute injuries and injuries when they are away from home should go to the nearest military medical institution for diagnosis and treatment with their military identity certificate and enjoy free medical treatment. If there is no military medical institution nearby, they may go to the local medical institution nearby for diagnosis and treatment; If it is really necessary to be hospitalized, it shall continue with the unit within one week. After the condition is stable, it shall be transferred to a system hospital or other military medical institution designated by the unit for diagnosis and treatment. During the period of diagnosis and treatment in local medical institutions, the medical expenses shall be paid by indivials in advance and returned to the unit for review and reimbursement with the diagnosis certificate and charging documents. If the patient's condition is stable and can be transferred to another hospital, the medical expenses shall be borne by the patient
Article 11 if soldiers go out to work, study or study and cannot seek medical treatment in their own hospitals, they can go to the nearest military hospital with their military identity certificate and enjoy free medical treatment. If there is no military hospital nearby, they can go to the local medical institution for diagnosis and treatment. The medical expenses are paid by indivials in advance and returned to the unit for examination and reimbursement with the diagnosis certificate and charging documents
if the soldiers go out for more than one month, they should be transferred to medical service
Article 12 soldiers can enjoy free physical examination according to regulations and premarital physical examination in systematic hospitals. When a female soldier gives birth in a military hospital where her spouse, parents or in laws are located, she and her newborn enjoy free medical treatment
Article 13 soldiers suffering from difficult diseases who need Cross medical system diagnosis and treatment shall be treated according to the following referral proceres and enjoy free medical treatment:
(1) those in the war zone shall be introced by the system hospitals; Special cases, introced by the Ministry of health of the Joint Service Department of the military region
(2) for those who cross the war zone, the General Hospital of the war zone puts forward the referral opinions and introces them to the health department of the Joint Service Department of the military region
(3) for those in Beijing, the General Hospital of the large unit where they work puts forward the referral opinions and the health department of the large unit introces them< (4) introced by the General Logistics Department and the Ministry of health
if the referral is not carried out in accordance with the provisions of the preceding paragraph and approved by the patient's unit, the medical expenses shall be reimbursed by the approved unit; If it is not approved, it shall be taken care of by the patient
Article 14 with the approval of military medical institutions, military personnel who go to local medical institutions for diagnosis and treatment or purchase drugs shall be reviewed and reimbursed by the approved military medical institutions according to the regulations on the basis of relevant diagnosis certificates, drug prescriptions, detailed list of expenses and charging bills; If it is not approved, the expenses shall be borne by itself
Article 15 retired or retired cadres under the administration of the armed forces, with the approval of the cadre Department of their own large unit, shall not be transferred to other places to live with their spouses or children, and need to seek medical treatment in military medical institutions of their residence. If they are in their own war zone, they shall be approved by the health department of their own large unit; In case of straddling a war zone, it shall be approved by the health department of the large unit to which it belongs and the health department of the large unit to which it resides; Those who cross large units to hospitals under the General Logistics Department in Beijing shall be approved by the General Logistics Department and the Ministry of health
those who have been approved in accordance with the provisions of the preceding paragraph and have transferred the basic standard of their original unit's health expenditure personnel to the medical treatment unit shall enjoy free medical treatment
Article 16 retired military cadres who have been transferred to the government for resettlement, still live in military sanatoriums with their spouses and are in charge of by the sanatoriums, and transfer their annual medical expenses to the entrusted units, shall seek medical treatment in military medical institutions and enjoy free medical treatment
Article 17 the management of medical expenses of key military health care objects and retired cadres who enjoy reimbursement of medical expenses shall be carried out in accordance with relevant regulations< Chapter III Management of general medical expenses of military family members Article 18 military family members who meet one of the following conditions shall seek medical treatment in military medical institutions and enjoy preferential medical treatment:
(1) spouses who are approved by the organization to join the army and have registered permanent residence in military stations without work or income (hereinafter referred to as "double no")< (2) children under the age of 18 who are both soldiers (hereinafter referred to as "double soldiers") and children under the age of 18 who are approved by the organization to join the army
(3) the "double no" spouses and children under the age of 18 who meet the conditions of being with the army but are not with the army and do not receive medical assistance
(4) "double no" spouses and children under 18 years old living with soldiers in remote and difficult areas determined by the headquarters with the approval of units above division level
(5) spouses and children under 18 years old of officers and civilian cadres who do not meet the requirements of military service, live together with soldiers and have registered permanent residence in the army< (6) before September 30, 1949, the spouse of a soldier who took part in the revolution and transferred to another place of work, has gone through the retirement proceres and returned to the army for a long time, and it is really difficult to seek medical treatment in the local area. I request to seek medical treatment in a nearby military medical institution with the approval of the health department of the large unit of the army, And transfer my annual medical expenses to the military primary medical institutions
(7) with the approval of the organization, the children who have reached the age of 18 years old and have really lost the ability of self-care or are still studying in secondary schools (including technical secondary schools) are approved by the health department of the unit above division level< (8) the children of two soldiers who are fostered in other places and require medical treatment in the military medical institutions near the place of foster care, and who meet the requirements of items (2) and (7) after being verified by the medical institutions< (9) parents who are supported by the army with the approval of the political organs of units above division level
Article 19 the family members of soldiers who enjoy preferential medical treatment shall be examined and confirmed by the health department of the unit at or above the regiment level in conjunction with the military affairs, cadres and financial departments, and the health department shall be responsible for handling preferential medical certificates for them
if the military family members who meet the requirements of Article 18 are not willing to apply for preferential medical treatment or there is no military medical institution near their residence, they will be given medical subsidies according to relevant regulations
Article 20 military family members who enjoy preferential medical treatment in military medical institutions shall be charged according to the medical price stipulated by the local price department, free of registration fee, bed fee, heating fee, cooling fee and cleaning fee. The outpatient fee shall be borne by the indivial 20%, and the hospitalization fee shall be borne by the indivial 10%. If the family is in special financial difficulties, the expenses borne by the indivial can be reced or remitted according to the situation after the examination and approval of the receiving medical institution
Article 21 officers, civilian cadres and non commissioned officers in active service who are transferred to other units of the army and whose family members have not moved with them and meet the conditions of preferential medical treatment can continue to enjoy preferential medical treatment in their original units
Article 22 in addition to paying fees in accordance with the provisions of Article 20, the military family members who enjoy preferential medical treatment shall implement the provisions on the management of military general medical expenses
Article 23 the following military family members receive medical treatment in military medical institutions and enjoy free medical treatment:
(1) female comrades who joined the army before September 30, 1949 and were demobilized around 1955 and are still military family members
(2) the "double no" spouse of the deceased retired cadres and the sacrifice with the army and receiving the regular living allowance for the survivors, and the spouse and children of the dead soldiers
(3) the "double no" family members who live with the army in Tibet Autonomous Region and areas above 3000 meters above sea level< (4) spouses of officers and civilian cadres in active service who took part in revolutionary work before September 30, 1949, and retired or retired cadres in military management after being approved by the organization
Article 24 the family members of the "double no" soldiers who come to the team temporarily, suffering from emergency ring the specified period of visiting relatives, can get medical treatment in the system medical institutions of the soldiers and enjoy preferential medical treatment on the strength of the certificates of the military affairs, cadres and health departments of the units above the regiment level
Chapter IV Management of overall medical expenses for serious diseases