问题 多项选择题

压力容器做液压试验时的注意事项()

A、水温不低于7℃

B、试验时压力容器的顶部应设排气口,充水时应将压力容器内的空气排尽

C、试验时压力应缓慢上升,达到规定试验压力后,保压时间一般不低于30分钟,然后将压力降至规定压力的60%,并保持足够长的时间,以对所有焊缝和连接部位进行检查

D、液压试验完毕后,应将水排尽

E、新制作完毕的压力容器只需进行液压试验外,不需进行致密性试验

答案

参考答案:B, D

单项选择题
阅读理解

阅读理解

     Arthur Miller(1915-2005)is universally recognized as one of the greatest dramatists of the 20th

century.Miller's father had moved to the USA from AustriaHungary,drawn like so many others by the

"Great American Dream".However,he experienced severe financial hardship when his family business

was ruined in the Great Depression of the early 1930s.

     Miller's most famous play,Death of a Salesman,is a powerful attack on the American system,with its

aggressive way of doing business and its insistence on money and social status as indicators of worth.In

Willy Loman,the hero of the play,we see a man who has got into trouble with this system.Willy is "burnt

out"and in the cruel world of business there is no room for sentiment:if he can't do the work,then he is no

good to his employer,the Wagner Company,and he must go.Willy is painfully aware of this,and at a loss as

to what to do with his lack of success.He refuses to face the fact that he has failed and kills himself in the

end.

     When it was first staged in 1949,the play was greeted with enthusiastic reviews,and it won the Tony

Award for Best Play,the New York Drama Critics' Circle Award,and the Pulitzer Prize for Drama.It was

the first play to win all three of these major awards.

     Miller died of heart failure at his home in Roxbury,Connecticut,on the evening of February 10,2005,the

56th anniversary of the first performance of Death of a Salesman on Broadway.

1. Why did Arthur Miller's father move to the USA?

A. He suffered from severe hunger in his home country.

B. He was attracted by the "Great American Dream".

C. He hoped to make his son a dramatist.

D. His family business falled.

2. The play Death of a Salesman _____.

A. exposes the cruelty of the American business world

B. discusses the ways to get promoted in a company

C. talks about the business career of Arthur Miller

D. focuses on the skills in doing business

3. What can we learn about Willy Loman?

A. He treats his employer badly.

B. He runs the Wagner Company.

C. He is a victim of the American system.

D. He is regarded as a hero by his colleagues.

4. After it was first staged,Death of a Salesman _____.

A. achieved huge success

B. won the first Tony Award

C. was warmly welcomed by salesmen

D. was severely attacked by dramatists

5. What is the text mainly about?

A. Arthur Miller and his family.

B. The awards Arthur Miller won.

C. The hardship Arthur Miller experienced.

D. Arthur Miller and his bestknown play