根据《矿山安全法》规定，矿山企业必须对作业场所中的有毒有害物质和井下空气（)进行检测，保证符

The functions of money are ___.

A、medium of exchange

B、store of value

C、unit of account

D、economic index

A．A.medium of exchange;store of value

B．B.medium of exchange;unit of account

C．C.store of value;medium of exchange

D．D.store of value;unit of account

(2)

A．A Legal tender is the money recognized as a legal medium of exchange.

B．Money is used as legal tender if it is a medium of exchange.

C．Money is not used as legal tender until it is a medium of exchange.

D．Legal tender is the money recognized as a medium of exchange.

A、Store of wealth

B、Unit of account

C、Medium of exchange

D、None of the above

A、a medium of exchange

B、a unit of account

C、a store of value

D、a standard of deferred payment

Money is used as______:

A．a medium of exchange

B．a store of value

C．a unit of account

D．all of the above

Using money as a medium of exchange means that______.

A．you have to sell something in order to buy something

B．you have to buy something in order to sell something

C．you don't have to buy something in order to sell something

D．the seller and the purchaser are the same person

Which of the following is not a function of money？______.

A．To act as a medium of exchange

B．To act as a unit of account

C．To act as a store of value

D．To act as a means of payment

E．To provide a double coincidence of wants