磺胺类药物的抗菌机制是（） A.破坏细菌细胞壁 B.抑制敏感菌二

搜题请搜索小程序“爱下问搜题”

问题单项选择题 A1/A2型题

磺胺类药物的抗菌机制是（）

A.破坏细菌细胞壁

B.抑制敏感菌二氢叶酸合成酶

C.抑制敏感菌二氢叶酸还原酶

D.改变细菌细胞膜通透性

E.抑制细菌蛋白质合成

答案

参考答案：B

填空题

时态填空。

1. We _____ (make) a survy of the school in Beijing, and I found something new.

2. Car is more and more popular, you'd better _____ (learn) to drive.

3. Jordan _____ (be) born in 1975.

4. Tiger Woods started golfing when he _______ (be) ten months old.

5. It's important _______ (stay) healthy for everyone.

6. He is going to be an engineer when he _______ (grow) up.

7. It is the third time for Zidane _______ (win) "World Player of the Year 2003" award.

8. Toby _______ (win) a prize last term.

9. I think you can ask him _______ (help) you.

10. Keep quiet, please. They _______ (have) a meeting.

判断题

进口保税货物以及加工贸易项目实行的“不设台账”措施适用海关事务担保。 ( )