单选题
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
【正确答案】
C
【答案解析】
[解析] 本题考察货币作为商品交换媒介的作用。文章第一段首句指出货币的出现导致了商品交换中买和卖两种行为的可分离性,故而不必为买而卖,为卖而买。选项C正确。
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