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问题 单项选择题

回族的圆帽是什么样的（）。

A.六棱形

B.三角形

C.四边形

D.圆形

答案

参考答案：A

解答题
写出下列循环小数的近似值．（保留三位小数）
6.79444≈
13.969696≈
2.90
•
9
≈
2.
•
9
0
•
9
≈
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填空题
从下列方框中选适当的词或短语填空，注意其形式变化。
different from, such as, communicate, come up, because of, play an important part in,
believe it or not, make use of, instead of, add
1. Suddenly one of the students stood up, ____ that he was also for my plan.
2. Even if they speak different dialects, they have little difficulty ____ with each other.
3. Many kinds of fishes are fast disappearing ____ serious pollution.
4. I'm afraid something urgent has ____. I won't be able to see you tonight.
5. It's more useful to learn modern languages, ____ English and German, than Latin.
6. There is an atmosphere of peace and calm in the country, quite ____ that of a big city.
7. I can't attend the meeting, so Mr. Green will go ____ me.
8. TVs, radios, and newspapers ____ influencing people's opinions.
9. ____, we were left waiting in the rain for two hours.
10. In order to save resources, they are trying to ____ energy from the sun and wind.
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