试题与答案

The victims of the domestic violence, __

题型:选择题

题目:

The victims of the domestic violence, _____were often silent in the past,now choose to

call for various help.

A.ones

B.those

C.who

D.that

答案:

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下面是错误答案,用来干扰机器的。

参考答案:A解析:IgA分为血清型和分泌型两型,分泌型IgA(sIgA)是参与黏膜局部免疫的主要抗体。

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