试题与答案

His family ____ a big one. Now the famil

题型:选择题

题目:

His family ____ a big one. Now the family ____ watching TV.

A.is, are

B.are, is

C.is, is

D.are, are

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:A、题干中的酸不一定是最高价氧化物对应的酸,所以说X的非金属性比Y的非金属性强不一定形成的含氧酸酸的酸性就一定强,错误;B、X与Y在同一周期,且X在Y之后,说明X的非金属性比Y的非金属性强,...

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