油膜轴承安装前的准备工作有哪些?

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问题:

油膜轴承安装前的准备工作有哪些?

考点:轧钢工考试中级轧钢工中级轧钢工题库
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Arthur Robert Ashe Jr. was the first African-American player to take part in the international sport of tennis at the highest level of the game. He was born on July 10, 1943.

When Arthur was 6, his mother died. Arthur, with his father and his brother, lived near a large park in Richmond, Virginia. His father was the manager of the park. He took care of the park and made sure everything was right. 

Arthur was allowed to play in the park when he was seven years old. He was quite energetic. A swimming pool, tennis courts, and baseball diamonds (棒球场) were in the park. Arthur spent a lot of time playing there. He did well in sports, but he had never tried to play tennis.

He often watched the tennis players. Sometimes there were tennis lessons, and Arthur would watch even more carefully. The young man teaching the lessons noticed Arthur. His name was Ronald Charity.

Mr. Charity asked Arthur if he wanted to learn to play tennis. Arthur was excited and agreed. Arthur learned very quickly. Mr. Charity found Arthur would grow up to be a good tennis player. By the time he was ten, Arthur won a tournament (联赛). Many older and bigger players came to the park trying to win the prize, but Arthur beat them. He became known as “the kid who could play tennis”.

Arthur grew up to be one of the first successful African-American tennis players. He played and won all over the world.

小题1:Which question is answered in Paragraph 2?

A.Where did Arthur grow up?

B.Why did Arthur like tennis best?

C.When was Arthur born?

D.What did Arthur like to do at school?小题2:The park offered people all of these EXCEPT ____.

A.tennis

B.football

C.baseball

D.swimming小题3: How did Arthur meet Mr. Charity?

A.Arthur’s father asked Mr. Charity to give Arthur tennis lessons.

B.While swimming at the pool, Mr. Charity met Arthur.

C.While teaching tennis, Mr. Charity saw young Arthur.

D.Mr. Charity noticed young Arthur was playing tennis well.小题4:What did Arthur do for the first time at the age of ten?

A.He entered the park where his father worked.

B.He copied tennis movements without holding a racket.

C.He pretended to hit a tennis ball back and forth over a net.

D.He played tennis better than players who were older than he was.小题5:This article is a(n) ____.

A.biography (传记)

B.diary

C.advertisement

D.piece of news

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苔藓和蕨类植物都不具有的器官是(  )

A.根

B.茎

C.叶

D.花

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配合比及计量准确,拌和均匀,分层铺设,压实适当,表面平整,厚度及找坡符合设计和规范要求是( )保温层应符合的要求。

A.松散保温材料

B.板状保温材料

C.整体现浇保温层

D.金属保温材料

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A.一年内未发生收付业务且没有债务关系的单位银行结算账户

B.借记卡账户对贷方余额为10元以下,且18个月(含)以上未发生收付交易(不包括系统计息,下同)的卡转入睡眠户

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下列选项中均为对销贸易的具体形式的是( )

A.易货贸易和转口贸易

B.易货贸易和补偿贸易

C.转手贸易和转口贸易

D.转口贸易和许可证贸易

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