问题 问答题 简答题

在揭开汽轮汽缸大盖时必须遵守哪些事项?

答案

参考答案:

揭开汽轮汽缸大盖时,必须遵守下列事项:

(1)只许在一个负责人的指挥下进行吊大盖的工作

(2)使用专用的揭盖起重工具,起吊前应按照规定的要求进行检查

(3)检查大盖的起吊是否均衡时,以及在整个起吊时间内,禁止工作人员将头部或手伸入汽缸法兰接合面之间。

阅读理解

阅读理解。

     Most American families are smaller than the families in other countries. Most American families have one or two

parents and one or two children each.

     When children are young, parents often ask them to  do  some work around the house.   And   in  many families,

parents often give the money for doing the housework by children. And children can learn how to make money for

their own use. Some children will find a part-time job(兼职) to get the money to use. So children know how to make

money and take care of themselves when they are young.

     Children in the USA will   leave their parents' home  when they grow up.   They usually live far from their parents

because they want to find good jobs. They often write to their parents or telephone them. And they often go to visit

their parents on holidays.

     Parents usually let their children choose their own jobs. Americans think it important for young people to decide

on their lives by themselves.

1. Most of American families have ______________ people each.

A. one or two

B. two or four

C. tow to four

D. about five

2. Children have to do some _______________ at home when they are young.

A. housework

B. homework

C. shopping

D. office work

3. They can get money for their ______________ when they are young.

A. housework

B. part-time jobs

C. voluntary (志愿的) work

D. both A and B

4. Do children in America usually live with their parents when they grow up?

A. Yes, they do.

B. No they don't.

C. We can't find the answers.

D. Some do, some don't.

5. Children ____________their parents.

A. write to their parents or telephone.

B. write to their parents and visit

C. write to their parents, telephone them or visit

D. go to their parents' home and meet

单项选择题