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问题 单项选择题

华法林与血浆蛋白的结合率是

A．10%～29%

B．30%～49%

C．50%～69%

D．70%～89%

E．90%～99%

答案

参考答案：E

补全对话，情景问答
从方框中选择最佳选项完成对话，有两项多余。
A. I like playing computer games.
B. Do you play computer games?
C. How do you do your homework on it?
D. They check my homework.
E. But I often chat with them at the weekend.
F. Yes, I do.
G. What games do you play?

Mike: Lucy, do you have a computer?
Lucy: __1__
Mike: What do you often do on it?
Lucy: I often visit websites and get some information for my homework.
Mike: __2__
Lucy: No, never. I think playing games wastes(浪费) too much time. What about you, Mike? Do you have a computer?
Mike: Yes. __3__ I think it's very interesting.
Lucy: Oh, I usually send emails to my teachers. __4__
Mike: Do you chat (聊天) with your friends on the Internet?
Lucy: Yes. __5__
1. _____  2. _____  3. _____  4. _____  5. _____
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单项选择题

8岁的患者，所有的乳磨牙均未脱，第一恒磨牙尖对尖关系。作为口腔医生应该（）。

A.继续定期复诊

B.计划序列拔牙以调整至较正常咬合

C.转诊至正畸科，咨询治疗意见

D.牵引以改变上颌磨牙位置

E.片切下颌第二乳磨牙远中面使恒磨牙调整至正常关系
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