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中级

单选题

A．often
B．seldom
C．really
D．much

A。结合上下文及常识可知，中国早期的钱是铜钱，通常情况下都是圆形，中间有个孔。 often和seldom都是频率副词，often用在此处表示铜钱在通常情况下的形状，而seldom却不能说明此情况，故A为答案。

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A．earlier
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C．better
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A．see
B．know
C．ask
D．answer

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A．answer
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C．question
D．problem

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