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问题 单项选择题

最少切割牙体组织的龋齿修复方法是（）

A.银汞充填术

B.嵌体修复

C.复合树脂修复

D.玻璃离子粘固剂修复

E.全冠修复

答案

参考答案：D

解析：在所提供的各项答案中，切割牙体组织最少的龋齿修复方法是玻璃离子粘同剂修复，D正确。

解答题

一个多边形的内角和是它的外角和的4倍，求这个多边形的边数．
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填空题
选词填空
be allowed to, instead of, clean up, be strict with, be good for, at present, think of, have…off, at least, at that age
1. His father asked the teacher to _____ his son.
2. _____,computer is the most important tool for the people in the world.
3. You should pay $ 20 for the book _____.
4. What do you _____ your trip to London?
5. Visitors _____ take photos here.
6. He was too shy to talk to the girls _____.
7. It is necessary to _____ your desk every day.
8. I'm so busy. I do not _____ a day _____ for two months.
9. Sometimes it _____ your health to drink some wine.
10. You are too fat. I think you have to eat more vegetables _____ meat.
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