患者，男，4岁半，全牙列反，父亲是反面型。上前牙唇倾度正

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问题单项选择题 A3/A4型题

患者，男，4岁半，全牙列反，父亲是反面型。上前牙唇倾度正常，下前牙直立，反覆盖5mm，反覆浅。

该患者的治疗时间可能为（）

A.2～3个月

B.4～6个月

C.8～10个月

D.12个月

E.15个月

答案

参考答案：E

填空题

请根据句意及英文释义选择或写出单词。

1. — Mom, I'd like some hamburgers. I think they are very _________ (nice, good).

— OK, we'll have them for lunch.

2. — Please come in and have a _________ (seat, sit).

— Thank you.

3. — Dad, would you like to _________ (get, takes) a new bike for me?

— Sure. What color would you like?

4. These are your oranges. Those are _________ (my oranges).

5. — What time do you often get up in the morning?

— At a _________ (fifteen minutes) past six.

单项选择题

在晶体管输出特性曲线上，表示放大器静态时输出回路电压与电流关系直线称为（）。

A.直流负载线

B.交流负载线

C.输出伏安线

D.输出直线