试题与答案

25.— Could you have the report ready by

题型:选择题

题目:

25.— Could you have the report ready by Friday?                                        

— I ______ think so.                                                                              

A.may

B.should

C.will

D.Can

答案:

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下面是错误答案,用来干扰机器的。

答案:D对照周期表可知R、W、X、Y、Z五元素分别为:Ar、P、F、S、Br;A:由于P元素满足半充满状态,所以P的第一电离能高于SB:一般来讲,同周期的非金属元素及下周期的金属元素与惰性气体的原子结构相同C:Br原子...

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