9.2 g金属钠投入到足量的重水中，则产生的气体中含有[ ] A．0.2 mol

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问题选择题

9.2 g金属钠投入到足量的重水中，则产生的气体中含有[ ]

A．0.2 mol中子

B．0.4 mol电子

C．0.2 mol质子

D．0.4 mol分子

答案

答案：B

填空题

根据句意、首字母或汉语提示完成句中所缺的英语单词。

1. I think this book must b to Ann.

2. The climber slipped and d to his death.

3. We are next-door n . We get on well with each other.

4. I have an a with my boss at 11:00.

5. She seems very w about something.

6. Jack is worried about the coming (最后的) exam.

7. The glass (掉) on the floor and broke into pieces.

8. I (数) all the students, there were sixty one.

9. The black dog likes (追逐) cats.

10.The two thieves have (逃跑) already.

单项选择题

国家机关及其工作人员作出下列何种行为造成损害的，受害人有权取得国家赔偿

A．违反国家规定征收财物

B．行政裁决不当

C．制定的法规、规章错误

D．行政机关建房侵占他人用地