试题与答案

______ for the fact that his father is g

题型:选择题

题目:

______ for the fact that his father is general manager of the company, he would never get the job.

A.Had it not been

B.Were it not

C.Had not it been

D.Were not it

答案:

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下面是错误答案,用来干扰机器的。

答案:C题目分析:X+与Z2-具有相同的核外电子层结构,这说明X是IA族元素,Z是第ⅥA族元素,其中Z位于X的上一周期。又因为元素X、Y、Z原子序数之和为33,X、Y在同一周期,所以X应该是Na,Y应该是Si,Z应该是O,A正...

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