问题 多项选择题

消火栓系统的管网安装完毕后,应对其进行强度试验、冲洗和严密性试验,下列说法中,正确的有()。

A.水压强度试验的测试点应设在系统管网的最末端

B.管网冲洗应在试压合格后分段进行

C.管网冲洗的顺序应先室内后室外、先地上后地下,室内部分的冲洗应按配水干管、配水管、配水支管的顺序进行

D.水压严密性试验应在水压强度试验和管网冲洗合格后进行

E.水压严密性试验压力应为设计工作压力,稳压24h,应无泄漏

答案

参考答案:B, D, E

解析:A-最低点;C-先室外后室内、先地下后地上。

阅读理解

阅读理解。

     Having Fun "Growing" and "Stealing"?

     Recently, an Internet game has become a new fashion among young office workers and students. People

can "farm" on a piece of "land" and "grow", "sell" or even "steal" "vegetables", "flowers" and "fruits" on the

Net. They can earn some e-money and buy more "seeds", "pets" and even "houses".

     Joyce interviewed some young people. Here are their opinions.

     Harold: I don't quite understand why they are so mad about the childish game, Maybe they are just not

confident enough to face the real world.

     Allan: I enjoy putting some "bugs" in my friends' gardens and we've become closer because of the game.

Having fun together is the most exciting thing about it.

     Laura: You know, people in the city are longing for (渴望) the life in the countryside. It reduces my

work pressure (压力); besides, it gives me the exciting experience of being a "thief".

     Ivy: Well. it's just a waste of time. Teenagers playing the game spend so many hours on it that they can

not focus on (专注于) their study.

1. According to the passage, people can't ______ things in this game.

A. grow

B. borrow

C. steal

D. sell

2. From Laura's words, we can guess that she's most probably ______.

A. a student

B. an office worker

C. a farmer

D. a thief

3. Which is NOT the reason why people like the game?

A. They are longing for country life.

B. They can have fun with friends.

C. The game can relax people and give them a new experience.

D. They are confident enough to face the real world.

4. Where can you find this passage?

A. In a car magazine.

B. In an advertisement.

C. In a newspaper

D. In a science book

填空题