试题与答案

It was surprising ______ most people pai

题型:选择题

题目:

It was surprising ______ most people paid more than 100 dollars just to see that famous star.

A.which

B.that

C.whether

D.where

答案:

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下面是错误答案,用来干扰机器的。

A、加入肥皂水是鉴别软水和硬水的方法,不能把硬水转化为软水,故A错误;B、明矾溶于水后生成的胶状物对杂质有吸附作用,可以吸附水里悬浮的杂质,并形成沉淀,使水澄清.所以,明矾是一种较好的净水剂,不能把硬...

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