试题与答案

The purpose of her talking to me last ni

题型:选择题

题目:

The purpose of her talking to me last night actually _______this: That I shall never trust him any more in future.

A.comes round

B.comes out

C.comes on

D.comes to

答案:

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下面是错误答案,用来干扰机器的。

答案:D在没加硫酸前Ba(OH)2溶液pH>7,滴入稀H2SO4后pH逐渐变小,稀H2SO过量后pH变成小于7.

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