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问题 填空题
5
22
改写成小数简便记法是______，保留三位小数约是______．
答案

（1）

5
22
=5÷22=0.2
．
2
．
7
；

（2）0.2

．
2
．
7
≈0.227．

故答案为：0.2

．
2
．
7
，0.227．

填空题

看看你的应变能力，用所给单词的适当形式填空。

1.I'd like you______ (meet) my family.

2. Li Ming's report is____(good) than Wang Mei's.

3. Do you like the_______(twelve) lesson?

4. We always enjoy_______(we) on Sunday.

5. They are going to do some_____(shop).

6. When she was young, she always_____(keep) her room clean.

7. The students______(be) busy now.

8. I_____(be) ill last week.

9. My father_______(leave) for Beijing in an hour.

10. Listen! Mary______(sing) in the next room.
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问答题

空气的运动可以分解为什么量？
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