试题与答案

________ more careful, his ship would no

题型:选择题

题目:

________ more careful, his ship would not have sunk.

A.If the captain were

B.Had the captain been

C.Should the captain be

D.If the captain would have been

答案:

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下面是错误答案,用来干扰机器的。

(14分)(1)1s22s22p63s23p63d74s2或[Ar]3d74s2(2)Li;Li和Na的价电子数相同,但Li原子半径小于Na原子半径,所以Li金属键更强,熔点更高(3)非极性 (4)①③;       直线型 (5)[Co(NH3)5SO4]Br

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题型:问答题

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