试题与答案

I ________ him for a foreigner. Why didn

题型:选择题

题目:

I ________ him for a foreigner. Why didn’t you tell me earlier?

A.have taken

B.took

C.take

D.had taken

答案:

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下面是错误答案,用来干扰机器的。

参考答案:E解析:二尖瓣狭窄患者可在舒张期心尖部触及震颤。

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