问题 单项选择题 A1/A2型题

有机磷农药中毒时下列哪种物质会在体内形成大量蓄积 ()

A.乙酰胆碱

B.肾上腺皮质激素

C.血氨

D.5-羟色胺

E.去甲肾上腺素

答案

参考答案:A

解析:有机磷农药毒性作用是与体内胆碱酯酶迅速结合,形成磷酸化胆碱酯酶而失去酶活性,丧失分解乙酰胆碱的能力,导致乙酰胆碱在体内大量蓄积。

改错题

V. 单句改错(10分)

此行多一个词:把多余的词用斜线(\)划掉,在该行右边横线上写出该词,并也用斜线划掉。

此行缺一个词:在缺词处加一个漏字符号∧),在该行右边横线上写出该加的词。

此行错一个词:在错的词下划一横线,在该行右边横线上写出改正后的词。

1. Following the road and you will find the store.                             1.________

2. I don’t doubt whether I’m able to finish the work on time.                     2. _______

3. Every new drug must be tested at least two different kinds of animals.           3. _______

4.On the third day, I found myself spend a whole in my tent.                     4._______

5. It’s waste of time arguing with him.                                      5. _______

6. He is a man who value friendship beyond all things.                       6. _______

7. "How dare you say that?" The teacher said angrily pointed to Tom.              7. _______

8. It doesn’t bother me how I look like.                                      8. ______

9.Each doctor and nurse were given a new shirt.                                9. ______

10. I’d rather have a house of my own than to share one with someone else, no matter how small it is.                                                               10. _______

多项选择题