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:
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0612/54e69e62efd2b6aac8efee8538951d16.html
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...