图书重印和再版的共同点有（）等。 A.成本不变 B.需进行审读 C.需进行市场调研

为了戒除烟瘾，在每次吸烟后，应用某种引起恶心、呕吐的药物，反复几次，就再不想吸烟了。这种戒烟方法是

A．系统脱敏法
B．条件操作法
C．自我调整疗法
D．厌恶疗法
E．暴露疗法

下列关于二尖瓣型心脏的描述，错误的是（）

A.肺动脉段凸出及心尖上翘

B.主动脉结缩小

C.形如梨形

D.反映右心负荷或以其为主的心腔变化

E.肺动脉段凹陷及心尖下移

句型转换。

1. Her favorite subject is music. (对画线部分提问)

    _______ _______ her favorite subject?

2. He likes biology because it's interesting. (对画线部分提问)

    _______ _______ he _______ biology?

3. Does he like to play with his cat? (作否定回答)

    ________, he ________.

4. We have science on Tuesday and Thursday. (对画线部分提问)

    _______ do _______ _______ science?

5. Mr. Li is my favorite teacher. (对画线部分提问)

    _______ _______ your favorite teacher?

6. That man is my uncle. (对画线部分提问) 

    _______ _______ that man?

7. This subject is interesting. (改为同义句)

    This _______ _______ _______ subject.

8. They get up at seven in the morning. (改为否定句)

    They _______ _______ up at seven in the morning.

9. The girls like music because it's exciting.(对画线部分提问) 

    _______ _______ the girls like music?

10. When do you go to bed every night? (改为同义句)

    _______ _______ do you go to bed every night?

全口义齿完成蜡型后，进行装盒时，人工牙的切缘或面与上层型盒顶部之间，至少应保持的间隙为（）

A.2mm

B.4mm

C.6mm

D.8mm

E.10mm

晚上有宾客打电话给前台员工，缠住员工长时间聊天时，怎么办？