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问题 单项选择题

对咽鼓管的描述，不正确的是（）

A.咽鼓管黏膜为假复层纤毛柱状上皮

B.纤毛运动方向朝向鼓室

C.纤毛运动方向朝向鼻咽部

D.咽鼓管软骨部黏膜为假复层纤毛柱状上皮，具有活瓣作用，故能防止咽部液体进入鼓室

E.成人咽鼓管鼓室口高于咽口2～2.5cm

答案

参考答案：B

完形填空
阅读下面发表在博客中的短文，根据短文内容，在短文后81-85小题给出的横线上填入恰当的词语。每空词数不限。
Problems
A
B
C
My problem is my parents. They never stop going on about how I should keep my room tidy, keep my hair tidy and wear smart clothes. They even make me do the washing-up after dinner every night! None of my friends have got such terrible parents. What should I do?
Helen
My best friend has suddenly turned her back on me and I don’t know why! Last week we phoned each other every day and e-mailed too, and over the weekend we went shopping together and she was fine. But at school on Monday morning she didn’t look at me or speak to me. I don’t know what I’ve done. She now spends all her time with another group of friends.
Jane
I have a really bad habit of chewing（嚼）the ends of my hair. I try to stop, but I can’t! My mom is starting to get really angry about it. Have you got any ideas?
Gina
 
Advice
Hi _________,
Why should your parents do all the washing-up? You should help around the house—it’s only fair. I don’t think you should change your looks though. Young people should look like young people.
②Hi_________,
Wearing your hair pulled back in a ponytail（马尾辫）will help keep it out of your mouth. When you feel like chewing something, try bubble gum（泡泡糖）. Give yourself time and you should be able to break this habit. The first few days are usually the hardest. Good luck!
③Hi ________，
Don’t worry about it so much! Phone your friend up as usual and she won’t be able to refuse you. I am sure you will get along well with each other. Everything will be fine.
小题1:根据所读内容将Helen, Jane, Gina 三个名字分别填入相应的横线上。(共3分，每空1分)
①________________________ ②________________________ ③________________________
小题2:The three girls wrote to ask for ________________________. （1分）
小题3:The underlined words “turned her back on me” means “________________________” in Chinese.（2分）
小题4:It is clear that Helen is not ________________________ with her parents.（2分）
小题5:According to the advice, Jane should ________________________ her friend as usual.（2分）
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单项选择题

基层是路面结构中的承重层，主要承受车辆荷载的（），并把由面层下传的应力扩散到垫层或土基。

A、竖向力

B、水平力

C、摩擦力

D、冲击力
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