问题 单项选择题

润滑油位过低,轴承不能充分润滑,产生热量不能被润滑油及时带走,会使()。

A.轴温升高

B.轴温降低

C.泵振动

D.噪声产生

答案

参考答案:A

阅读理解

阅读理解。

     At the Beijing time 14:28 May 12, 2008, a strong earthquake suddenly happened in Sichuan Province.

     As they saw a young woman in broken houses, the rescue (营救) workers were sad to find that she

had already been dead, yet surprised to notice her kneeling down with her hands touching the ground to

support her weight - and right under her shelter of flesh and blood (血肉), her several - month - old baby

was sleeping, safe and sound.

     The baby was put around carefully in a little quilt (被子), with a mobile phone inside. An unsent text

message was found that read:

     "Dear Baby, if you Could Be Alive, Please Remember That Mum Always Love You!"

     As it was too young to know what was really going on, the baby's dream must have been free from

nightmare (恶梦), though a nightmare was taking place. However, it was the mother's love that prevented

the nightmare from falling upon the young dreamer.

     Mother's love at her last breath!!!

1. It was _______ when the baby was found.

A. crying

B. dying

C. sitting

D. sleeping

2. The mother knelt down with her hands touching the ground in order to _______.

A. have a rest

B. save her baby

C. protect herself

D. prevent the nightmare

3. Which of the following is true about the text message?

A. It was a message to the baby's father.

B. It had already been sent out when found.

C. The mother hoped that her baby could live.

D. The mother wouldn't like the message to be found.

4. The passage is mainly about _______.

A. mother's love

B. Sichuan earthquake

C. a lucky baby

D. the last breath

问答题 简答题