Why does the author say that even gold and silver were inconvenient if you had to buy something expensive?
A. Because they are easy to steal.
B. Because they are difficult for people to obtain.
C. Because they are not easy to carry around.
D. Because they themselves are expensive, too.
A. Because they are easy to steal.
B. Because they are difficult for people to obtain.
C. Because they are not easy to carry around.
D. Because they themselves are expensive, too.
【答案】
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