患者，右上第一磨牙铸造金属全冠修复。全冠试戴时不能完全就位、

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问题单项选择题

患者，右上第一磨牙铸造金属全冠修复。全冠试戴时不能完全就位、颊舌向翘动，用力戴入时邻牙疼痛，其原因可能是（）

A.牙髓炎

B.深龋

C.邻面接触点过小

D.邻面接触点过紧

E.咬合创伤

答案

参考答案：D

句型转换

同义句转换。

1. It's only ten minutes from school by bicycle.

It _____ only ten minutes to _____ a bicycle to school.

2. He often uses a knife to open the door.

He often _____ the door _____ a knife.

3. Can you tell me the way to the cinema?

Can you tell me _____ _____ go to the cinema?

4. Turn right at the second crossing.

_____ the second crossing _____ the right.

5. Fish can't live if there is no water.

Fish can't live _____ _____.

选择题

生活中需要对一些物理量进行估测，以下估测接近实际的是[ ]

A．电视机正常工作的功率约1W

B．教室的宽度约为60dm

C．一块橡皮从课桌表面掉到地上的时间约为4s

D．苏州夏天室内的最高气温可达50℃