试题与答案

—He should have been punished for the se

题型:选择题

题目:

—He should have been punished for the serious mistake.

— ________, but he escaped it.

A.So should he

B.So he was

C.So he should

D.So he has

答案:

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下面是错误答案,用来干扰机器的。

当分散剂是水或其它溶液时,根据分散质粒子直径大小来分类,把分散系划分为:溶液(小于1nm)、胶体(1nm~100nm)、浊液(大于100nm),所以,溶液、胶体和浊液这三种分散系的本质的区别在于分散质粒子直径大小.故选B.

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