题目内容:
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.
参考答案:【答案仅供学习,请勿对照自行用药等】
答案解析: