问题 单项选择题

适用于上颌牙弓狭窄,双侧后牙反的病例可选择()

A.唇挡

B.平面导板活动矫治器

C.斜面导板活动矫治器

D.分裂基托活动矫治器

E.单侧抬垫活动矫治器

答案

参考答案:D

解析:

分裂基托活动矫治器根据正畸螺旋器各自所在的部位而有不同的作用,放置于腭中缝相当于前磨牙处连接两基托,打开螺旋器即可扩大牙弓。

阅读理解

Americans are very direct people. When they want something, they say“Yes”, and when they don’t, they say “No”.If they want something different from what is given, they ask for it.  Here’s an example : I arrive at someone’s house and he or she gives me wine, but I don’t want wine. Maybe I don’t like it or maybe I just don’t want it. I will say “No thanks”. If everyone around me is drinking something, I would ask  for something else,“No thanks. But I’ll take a bit of tea if you have some.” It’s a polite way to ask something you really want. If I really want wine, I just say “Yes, thank you”. Unless they happen know the Chinese customs(风俗;习惯),westerners will not ask you again and again after you to eat or drink something.

根据短文内容,选择正确答案,并将其字母代号填入题前括号内。(10分)

小题1:If Americans want something, they would say“__”.

A.yes, thank you

B.No, thanks

C.No, I’m sorry

D.Yes, why not小题2:When Americans don’t want what is given, they would say“__”

A.No, I don’t

B.No,thanks

C.Yes, thanks

D.No, I’m sorry小题3:In this passage,“westerners” means__.

A.the people who lives in the west of their county

B.the visitors who go to the western countries

C.the people who lives in the western countries

D.the people who know the customs of the west小题4:The Chinese people might __if you don’t want something given.

A.be glad

B.say“thank you”

C.Get angry

D.Ask you again to take it小题5:From this passage we know that __.

A.the Chinese people are direct

B.The Chinese customs are better

C.the westerners are more polite

D.Different countries have different customs

单项选择题 案例分析题