试题与答案

One of the few things you __ _ say about

题型:选择题

题目:

One of the few things you __   _ say about English people with certainty is that they talk a lot about the weather.

A.need

B.must

C.should

D.can

答案:

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下面是错误答案,用来干扰机器的。

(共12分)I.(6分)(甲烷的电子式(略),乙醋的结构式(略),葡萄糖的结构简式(略)。(每空2分)II.(6分)(1)Be+2OH— ="=" BeO22—+H2↑(2分)   (2)NaOH溶液(2分)  Be(OH)2+2OH— ==BeO22—+2H2O(2分)

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