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问题 多选题

如图，平行正对的两金属圆环A、B，在A中通以图示的交流电时，下列说法中正确的是

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A．在0--t1的时间内，两环间有吸引力

B．在t1时刻，两环间作用最大

C．在t2时刻，两环间作用为零

D．在t2--t3的时间内，两环间有排斥力

答案

CD

连词成句

连词成句。

1. movie, theatre, they, watch a movie, go to, the, to (.)

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2. have, don't, ears, you (?)

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3. it, do, turn, how, you, up (?)

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4. western, do, music, you, like (?) 

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5. Steven, how, does, often, play (?)

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改错题

I like eating fruit and vegetables what are of great benefit to our healthy. Not only do they prevent us from falling into ill, but they help us lose weight. I used to hate vegetables, but follow the doctor’s advice, I gradually kicked the bad habit. Just as an old saying going, “An apple a day keeps the doctor away”. However, there are still many children dislike fruit and vegetables. On contrary, influenced by this or that kind of advertisement, many were crazy about junk food. Consequently, they become weaker and weaker instead of getting strong. In my opinion, we must take action to change them.
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