如何确定三角挡的规格?

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问题:

如何确定三角挡的规格?

考点:货运从业资格考试货运员考试货运员考试题库
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小明在做数学题时,发现下面有趣的结果:

3﹣2=1

8+7﹣6﹣5=4

15+14+13﹣12﹣11﹣10=9

24+23+22+21﹣20﹣19﹣18﹣17=16

根据以上规律可知第100行左起第一个数是     

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数控编程下面()是程序段号的正确表达方式。

A.N0001

B.O0001

C.P0001

D.X0001

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若实数a,b满足a2+b2=6,则ab的最大值为______.

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成套配电柜调试前应检查的项目包括()等。

A.机械、电气闭锁应动作准确、可靠 

B.动、静触头的中心线应一致,接触紧密 

C.柜内控制电缆的位置不应妨碍手车进出,并应牢固 

D.柜内照明齐全 

E.二次回路辅助开关的切换接点应动作准确,接触可靠

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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 Austria Hungary, 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 l930s.

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

with its aggressive (有进取心的) 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 his worth. Willy is "burnt out" and in the cruel world of business there is no room for

sentiment (多愁善感): 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 failed.

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 best-known play.

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