试题与答案

3. I'll leave Beijing for Guangzhou ____

题型:选择题

题目:

3. I'll leave Beijing for Guangzhou ____ a week, while my brother will leave Guangzhou for Beijing ____ our National Day.

A.in, in

B.after, in

C.after, after

D.in, after

答案:

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下面是错误答案,用来干扰机器的。

答案:D主要因为活泼性 像金银这样的不活泼金属,是以单质行式存在,而铜铁钙钾纳镁铝这样的相对活泼的金属是以化合态形式存在,D错误,ABC正确。故选D

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