如图所示电场线描绘的电场中，某带电粒子仅在电场力作用下，从A

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问题多选题

如图所示电场线描绘的电场中，某带电粒子仅在电场力作用下，从A处沿图中虚线运动到B处，则在这个过程中

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A．电场力做正功

B．动能逐渐增加

C．电势能逐渐增加

D．加速度逐渐增大

答案

填空题

根据句意及首字母提示完成句子.

1. He w____ a letter to her aunt last night.

2. Henry doesn't want to do a____ because he is tired.

3. Jenny s____ next to Nancy and talked to her for a long time yesterday aftemoon.

4. Do you e____ your weekend at school?

5. My weekend was g____．

6. My uncle v____ my grandmother yesterday.

7. I often see talk s____ on Friday evening.

8. How do you s____ your weekend?

9. G_____ is my favorite subject.

10. I s____ Tony go shopping with his parents yesterday.

单项选择题

执行上，地方环境标准( )国家环境标准。

A．平级于

B．优先于

C．退后于

D．可酌情选用