公民直接参与民主决策的意义是[ ] ①有利于决策者把人民的根本利益作为决策的出发

用所给动词的适当形式填空。

1. Would you please _____ (not open) the door? It's so cold.

2. She didn't get better grades because of _____ (play) games too much.

3. Linda will be very sad if she _____ (not see) you.

4. The teacher often makes Jack _____ (stand) in class.

5. There _____ (be) an English party tonight, is there?

6. As we all know, light _____ (travel) faster than sound.

7. He hopes he _____ (win) the first prize again in the match.

8. Wang Hao spends as much as he can _____ (practice)table tennis every day.

9. It rained heavily yesterday, so my father _____ (drive) me to school.

10. Quiet! The students _____ (have) an English class.

一个多位数，它的千万位和千位上都是6，个位上是9，其他各个数位上都是0，这个数写作______．

北京地区某沟谷中稀性泥石流阻力系数为1.67，洪水时沟谷过水断面面积为600m2，湿周长为109.3m，泥石流水面纵坡为9.2%，该泥石流流速为（）。

A.3.0m/s

B.5.0m/s

C.7.0m/s

D.9.0m/s

下列维生素与人体免疫力关系密切的一组是（）。

A.维生素A、维生素E、维生素C、维生素B6

B.维生素K、维生素D、维生素B6

C.叶酸、烟酸、维生素B1

D.胆碱、叶酸

E.生物素、维生素B12

喉返神经病变常见于（）

A.左侧

B.右侧

C.双侧

D.周围神经

E.以上都不对