试题与答案

正常精液液化时间小于() A.10分钟 B.20分钟 C.30分钟 D.40分钟 E

题型:单项选择题

题目:

正常精液液化时间小于()

A.10分钟

B.20分钟

C.30分钟

D.40分钟

E.50分钟

答案:

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参考答案:B解析:[知识点] 数据库的基本概念:数据库,数据库管理系统,数据库系统[评析] 数据库管理系统的三级模式结构由外模式、模式和内模式组成。外模式,或子模式,或用户模式,是指数据库用户所看到的数...

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题型:阅读理解

阅读表达。

     Every country has many good people who help to take care of others. Some high school and college

students in the United States often spend many hours as volunteers in a hospital, orphanage (孤儿院) or

home for the aged.

     They read books to the people who must be in these places or they just visit them and play games or

listen to their problems. Other young people volunteer to collect food or money, or they work in the

homes of people who are sick or old. They paint, clean or repair their houses, do their shopping or mow

their lawns. There is a group of volunteers to meet almost every need. For boys who no longer have

fathers there is an organization called Big Brothers. College students and other men take these boys to

baseball games or on fishing trips and help them to know about things that boys usually learn from their

fathers. Every city has a number of clubs where boys and girls can go play games or to learn crafts.

Some of these clubs have movies or organize short trips to the mountains, the beaches, museums or

other places of interest. Most of these clubs use many high school and college students as volunteers

because they still remember the problems of younger boys and girls. Volunteers believe that some of the

happiest people in the world are those ________________________.

1. What does the passage mainly talk about? (within 10 words)

  ____________________________________________________

2. What do volunteers usually do in the home for the aged? (within 20 words)

________________________________________________________

3. Please fill in the blank in the last paragraph with proper words or phrases to complete

    the sentence. (within 10 words)

______________________________________________________________

4. What else would you do if you got a chance to be such a volunteer? (within 10 words)

_______________________________________________________________

5. What does the underlined word "they"( in the last but two line) refer to? (within 5 words)

________________________________________________________________

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