男性，38岁。全口牙出血、咀嚼无力。且刚完成彻底的牙周系统治疗

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问题单项选择题

男性，38岁。全口牙出血、咀嚼无力。且刚完成彻底的牙周系统治疗。全身无明显的系统疾病。口腔检查：牙周袋深度较治疗前增加，X线片示：牙槽骨吸收有明显发展。口腔卫生情况良好。初步诊断为

A．青少年牙周炎
B．与糖尿病有关的牙周炎
C．成人牙周炎
D．快速进展性牙周炎
E．顽固性牙周炎

答案

参考答案：E

句型转换

句型转换。

1. We can't play football in the classroom. (改为祈使句)

_______ _______ football in the classroom.

2. Run in the hallway. (改为否定祈使句)

_______ _______ in the hallway.

3. You can go out on school nights.(改为否定意义的祈使句)

_______ _______ out on school nights.

4. You can't do this.(改为祈使句)

_______ _______ this.

5. What other things do you have to do?(改为同义句)

_______ _______ do you have to do?

6. Peter must go to bed by 10:00.(改为同义句)

Peter _______ _______ go to bed by lo:oo.

7. Don't talk in class.(改为同义句)

No _______ in class!

单项选择题

下列玩具不是从功能角度分类的是（）

A.运动性玩具

B.建构玩具

C.益智玩具

D.传统玩具