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问题 不定项选择

物体m用线通过光滑的水平板间小孔与砝码M相连，并且正在做匀速圆周运动，如图所示，如果减少M的重量，则物体m的轨道半径r，角速度ω，线速度v的大小变化情况是

[ ]

A． r不变，v变小       

B． r增大，ω减小

C． r减小，v不变  　　 

D． r减小，ω不变

答案

答案：B

填空题

用适当的介词填空。

1. He climbed up to the top of a large rock, ______ where he got a good view.

2. The painting ______ which I looked was painted by Vincent Van Gogh.

3. The pen ______ which she wrote that book can now be seen in a museum.

4. The little creature (生物) ______ which scientists are interested is known as ET.

5. The film ______ which I fell asleep was very boring.

6. The gun ______ which he was shot was never found.

7. Please give me the reason ______ which you were late this time.

8. He remembers the day ______ which his father died. He was only ten years old at that time.

9. The girl ______whom you talked at the meeting is a college student.

10. The people ______ whom the man spoke weren't listening.
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单项选择题

根据公司登记管理法律制度的规定，下列各项中，不需要办理变更登记的是______。

A．公司的经理发生变化
B．公司的住所发生变化
C．公司的实收资本发生变化
D．公司的名称发生变化
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