问题 问答题 简答题

离心泵在运行中应检查的内容是什么?

答案

参考答案:

(1)检查各运行参数是否合乎规定指标;

(2)检查润滑油油脂是否合格,油位是否合乎要求;

(3)检查冷却水的情况;

(4)检查轴承的温度;

(5)检查机泵有无振动等异常现象;

(6)检查各部位有无泄漏。

阅读理解

阅读理解

       Some children wish to be writers some day. They want to write stories or books for people to read.

That's good!It's good to write something for people to read!But they should know that they need to be

good readers first before they are really good writers. They should read a lot of books, instead(代替) of

watching TV and spending a lot of time playing games when they are free.

       There is more fun in reading, you want to look for more books to read.

       Before you decide(决定) to be a good writer, you'd better say to yourself, "I must read more and

more!"

根据短文内容,选择正确答案。

1. This article mainly tells us that ________.

A. some children wish to be writers some day

B. it is good to write something for people to read

C. reading can be helpful for us to become a good writer

D. writers like to read more books for fun

2. Some children want to be writers ________.

A. because they want to be good readers

B. to write stories or books for people to read

C. to find good work some day

D. to get more money to keep a family

3. It's good for children ________.

A. to do a lot of reading

B. to watch TV in the evening

C. to have wishes only

D. to be good writers right now

4. Reading can ________.

A. help you to be a good player

B. help you write well

C. make you work better

D. make you watch more TV at home

5. From the passage we know that ________.

A. all children like to be writers

B. people like to read for children

C. all writers are children

D. children need to read more and more books

单项选择题 B1型题