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问题 单项选择题


以下提供若干组考题，每组考题共同使用在考题前列出的A、B、C、D、E五个备选答案。请从中选择一个与考题关系密切的答案。每个备选答案可能被选择一次、多次或不被选择。

抗-DNP-OVA+DNP-OVA

A．适量沉淀(+)
B．大量沉淀(+++)
C．没有沉淀(-)
D．出现凝聚
E．不出现凝聚

答案

参考答案：B

解析：抗-DNP-OVA与DNP-OVA反应，由于有载体交联，并有抗载体抗体存在，因此出现大量的沉淀。

改错题

短文改错。

     Did you enjoy yourself yesterday? I suppose you do. But I'd like to tell you what a bad day I had yesterday.

Everything just went wrongly. On the morning, my alarm clock didn't ring, since I woke up an hour late. I was

in such a hurry that I burnt my hand when I was cooking the breakfast. Then I ran out of the house to catch

the 8:30 buses. This is the bus I usually take. But, you may laugh, I missed it of course. I am very unhappy,

and scared as well because teacher hates the students coming late to school. So I ran three miles to school only

to found that nobody was there. The school was quiet but peaceful. Our classroom was locked. I realized that

moment: It was Sunday.

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单项选择题 A1/A2型题

具有补血、活血、止痛、润肠功效的药物是（）

A.熟地黄

B.白芍

C.当归

D.何首乌

E.阿胶
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