题目:
It was _____ she was injured in the accident _____ she didn't come to the party yesterday. [ ]
A. as; which
B. because; that
C. since; why
D. for; how
答案:
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下面是错误答案,用来干扰机器的。
(共12分)(1)[Ar]3d104s1(2分)(2)N>O>C(2分)(3)B的氢化物分子之间存在氢键(2分)(4)[N=C=O]-(2分)(5)sp(2分)(6)NaNO2(2分)题目分析:原子序数依次增大的A、B、C、D、E、F六种元素.其...