问题 单项选择题 B1型题

基托在哪个区域适当伸展以利固位()

A.舌侧翼缘区

B.颊侧翼缘区和前弓区

C.远中颊角区

D.后堤区

E.磨牙后垫区

答案

参考答案:A

解析:全口义齿基托边缘在一些基托边缘非抗力区或面积较大的部位,如上下颌口腔前庭(特别是前弓区、颊侧翼缘区)以及下颌舌侧翼缘区在不影响周围软组织生理运动的情况下应尽量扩展,可有利于固位;但在远中颊角区由于受咬肌前缘活动的限制,义齿基托不能较多伸展,以免咀嚼肌活动造成义齿脱位。

阅读理解

阅读理解。

     David did well in all his subjects except (除……之外) physics. Mr Brown, his physics teacher,

gave him his physics paper and said to him, "Show it to your dad and ask him to sign his name (签名)

on the paper."

     David played football until it was 7 o'clock. When he got home, his parents finished supper. His dad

was watching TV and his mom was doing the dishes in the kitchen as usual (像往常一样).

     "Dad, may I ask you some questions?" David asked happily. "Yes, of course," said his dad.

     "If you can't answer them, you'll have to do something for me." "OK, I'll do as you tell me," said

his dad.

     "What is cooler, walking or sitting in the sun?" "Walking is cooler. It can make wind."

     "Which clothes can keep out (阻挡) the sunlight, shirts or coats?""Coats can keep out the sunlight

because they are much thicker (比较厚) than shirts."

      "Is a man smart if he wears a coat and walks in the sun in summer?" David looked at his dad and

waited for his answer. His dad thought for a minute and shook his head (摇头).

      David took out his paper, "Now sign your name on the paper, please."

1. What does Mr. Brown teach at school? [ ]

A. Geography.

B. How to sing.

C. Physics.

D. How to play football.

2. Who usually washes the dishes at David's home? [ ]

A. The mother.

B. The father.

C. David.

D. Both the parents.

3. What do you think the father has to do finally? [ ]

A. Do the dishes.

B. Sign his name.

C. Watch TV.

D. Walk in the sun.

4. What do you think of David? [ ]

A. He isn't active.

B. He is tall and strong.

C. He is smart and athletic.

D. He doesn't work hard at school.

5. Which is NOT true according to the passage?  [ ]

A. David isn't good at physics.

B. David didn't go home until 7 pm that day.

C. David's father answered all his questions.

D. It isn't smart for a man to wear a coat in the sun.

问答题 论述题