对HIV的错误叙述是（）。 A.核酸类型是单股负链RNA B.HIV基因

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问题单项选择题 A1型题

对HIV的错误叙述是（）。

A.核酸类型是单股负链RNA

B.HIV基因可长期整合于宿主细胞基因

C.感染其他病毒可使HIV基因活化而转为显性感染

D.P24抗原检测阳性提示病毒复制，预后不良

E.GP120抗原可刺激机体产生中和抗体

答案

参考答案：A

解析：HIV基因组由2条相同的正链RNA组成。

填空题

根据句意和首字母完成单词。

1. I think you'd better take your father's a_________.

2. We often take four c_________ in the morning from Monday to Friday.

3. Last Sunday he gave me a pen as a g_________ for my birthday.

4. We often go to the a__________. There are sharks and seals in it.

5. Tina bought a s__________ in the zoo.

6. Toby won a gold prize in the c__________.

7. You should play some o__________ sports in the morning because the air at the moment is clean.

8. —Did you get Wang Fei's a__________.

—Yes, I did. She wrote her name on the cover of my new notebook.

9. It is raining. You had better take an u __________ with you.

10. I want to be a teacher in the f__________.

多项选择题

砂、石应按同产地同规格分批验收。用小型工具（如马车等）运输的，以（）m或（）t为一验收批。不足者亦为一批。

A.200

B.300

C.400

D.600

E.800