轴承退卸时有何要求？

阅读理解。

     In England ,people don't often talk to each other when they travel. If you get on a bus or a train.

youcan see people sitting and looking out of the window. Other people may read books or newspapers.

     When you meet English people, they often start a conversation by talking about the weather . So

when you meet somebody in England, you can say, "Nice weather for the time of the year!"

     "But it was a little cold yesterday, "somebody may answer.

     "But it will get a bit warmer later,"you can say.

     Talking like this, they will think,"How friendly you are!"

1. English people _____on the bus.

A. often talk a lot        

B. never talk to each other  

C. read newspapers      

D. never looking out of the window.

2. When you meet English people, you can start the conversation by talking about the_____.

A. weather      

B. work    

C. family  

D. age

3. According to(根据) the passage, if you talk to English people about the weather, they will think_____.

A. you are friendly    

B. you are right    

C. you are English  

D. you are clever.

4. Which of the followings is true?

A. English people like traveling by bus    

B. English people often talk about the weather

C. English people are unfriendly.        

D. English people like the cold weather.

列车运行前，电机车跟车工（）检查矿车装载和车辆各部件、连接装置情况，不符合要求不得编组运行

A、必须

B、不必

C、无需

完全职能批发商多为大型的独立批发商，如( )。

A．大型批发商业公司

B．大型综合贸易公司

C．综合商社

D．直运批发商

E．邮购批发商

整地深度是所有整地技术规格中最重要的一个指标。

在PC机启动时，BIOS会读主引导扇区中的程序，然后再转入活动分区的引导扇区来启动系统，主引导扇区中存放的程序是______ 。