如图所示，质量为m，带电量为-q的小球悬于O点，O点处于水平放置的相距为d、电势

根据下列句子及所给单词的首字母或汉语注释，写出空缺处写出该词的正确形式。（每空只写一词）

1. They are having a _________ (讨论) about how to get to the top of the mountain.

2. The young people are full of ___________ (精力) that they cannot keep still.

3. They will try their best to ____________ (提高) their English.

4. It is _________ (不同寻常) for him to do such a thing.

5. They often go to the country to enjoy the wild __________ (美景).

6. In the rush hours, the bus is usually so c________ that many people cannot get on.

7. The soldiers got out of the bed when they heard the a_________.

8. Everyone must learn how to c__________ their feelings.

9. Can you give me a d__________ of the museum?

10. Panda lives on a kind of b__________.

中国移动的使命是：（）。

为实现装卸搬运合理化的目标，要选择适当的包装。能减少无效包装作业的包装措施有()。

A.包装盛装化

B.包装简单化

C.包装实用化

D.包装复杂化

E.包装轻型化

正铲挖土机与反铲挖土机的作业特点与适用范围有什么主要区别？

事物发展的必然性产生于（）

A．事物的外部矛盾

B．事物内部的根本矛盾

C．事物内部所包含的肯定方面

D．事物与外界的联系