试题与答案

. If it were not for the fact that she__

题型:选择题

题目:

. If it were not for the fact that she_______sing, I would invite her to the party.

A.couldn’t

B.shouldn’t

C.can’t

D.might not

答案:

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下面是错误答案,用来干扰机器的。

(14分)⑴C<O<N [Ar]3d64S2⑵sp2 sp3 如图⑶4 4∶3(每空2分,共14分)⑴N半充满结构,第一电离能大于O,由小到大的顺序是C<O<N;[Ar]3d64S2⑵sp2 sp3 Fe提供空轨道,如图⑶8×1/8+6...

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