最早提出用截趾术治疗脱疽的医书是：A．《山海经》 B．《内经》 C．《神农本草经》

阅读理解。

     It's easy to make you embarrassed (窘迫的)-You may run into the wrong classroom and everyone looks

at you. Or you have a piece of cabbage in your teeth! What do the American and British teens find

embarrassing and how do they react to it?

     One big embarrassing thing for them is answering personal questions. If you ask "How old are you?" or

"How much money do you make?", they'll get angry. It's polite to stop asking. If you meet someone for the

first time, talk about something not personal, such as your neighborhood or school. British people love to talk

about weather.

     British and American teens feel embarrassed if they still use their parents' money to buy clothes or have

to ask their parents before making a decision, because others will laugh at them.

     In some situations, if you look bad in public, don't worry. A child may forget and call his or her teacher

"mom" in class. A good laugh is a good way out of it! Sometimes you find that you don't have enough money

when you pay at the supermarket. Just put some things back quickly. If you explain too much, you'll attract

(吸引) a lot of attention!

     Honesty always works best. If you forget the name of a person, or don't know how to clean the toilet after

using it at your friend's home, just ask them about it.

1. The question "_____" may make British or American teens angry.

A. It's cold, isn't it?

B. How do you like your neighborhood?

C. How much money do you make?

D. What do you think of your school?

2. British and American teens like to _____.

A. buy clothes with their own money

B. laugh at each other

C. ask parents to make a decision

D. ask personal questions

3. You'd better _____ if you don't have enough money to, pay at the supermarket.

A. ask for a cheaper price

B. phone your parents

C. attract a lot of attention

D. put some things back quickly

4. The following embarrassing things are mentioned in the passage EXCEPT _____.

A. having a piece of cabbage in one's teeth

B. mistaking a stranger for an old friend

C. running into a wrong classroom

D. forgetting the name of a person

5. The passage is mainly related to (涉及) _____.

A. traffic

B. culture

C. environment

D. food

一条人行道长30米，宽3米，用边长3分米的正方形水泥砖，铺地需要多少块？

通气孔座及阀盖漏水时，可重新研磨，使孔座及阀盖表面接触良好。

在以拨号方式入网的情况下，通常用户的电子邮件信箱设立在（）。

A.用户自己的微机上

B.用户的入网服务商的主机上

C.和用户通信的人的主机上

D.根本没有什么电子邮件信箱

证券市场虽主要属于资本市场，但与（）市场关系密切。

A.货币 

B.期货 

C.期权 

D.商品