在数据管理技术发展过程中，文件系统与数据库系统的主要区别是数据库系统具有______

阅读理解。

     Today more and more cars go into families. Which car is the best for people? Different people have

different ideas.

     Some people like the bright colour car made in China. It's really a good choice(选择). The bright

colour car made in China is cheap, nice and safe. This kind of cars is suit for(适合于) the general income (收入一般的) family.

     Some people love famous foreign cars like Japanese cars, American cars and German cars. They're

good but too expensive. But most people think famous foreign cars of better quality are better in safety.

These are suit for the high income family or for business.

     Some people like sports cars, because they're fast and exciting. Some sports cars are very nice but

very expensive. Only rich people can afford them.

     Some people like travelling, so they need a travel car. Travel cars are comfortable. But they use much

oil(油).

     What's the best car for us? Maybe it's a new and popular topic in life.

1. What does the writer think of the bright colour car made in China?       

A. It's nice but expensive.

B. It's good but too expensive.

C. It's cheap, nice and safe.

D. It's comfortable.

2. To the writer, the famous foreign car is suit for _____.        

A. the high income family

B. the general income family

C. people like traveling

D. people like sports

3. Some people like sports cars because they're_____.        

A. cheap and nice

B. comfortable and save oil

C. good but too expensive

D. fast and exciting

4. Which is NOT true about cars?        

A. Cars made in China are cheap.

B. famous foreign cars are too expensive.

C. Sports cars are also cheap.

D. Travel cars are comfortable.

5. The passage tells us _____.

A. some expensive cars

B. famous foreign cars

C. some cars made in China    

D. different cars

某股东拥有1000股股票，该公司要选出11名董事，在累积投票制情况下，对甲候选人，该股东最多可以投( )票。

A．11000

B．1110

C．110

D．11

试述加速度调节器的作用？

胶轮车蓄能器的氮气压力为（）MPa。

A、0.5

B、1

C、1.5

D、2

ARCS模型中显示的切身性，是指将学生的哪个需要与动机相结合。（）

A.缺失性需要

B.重要需要

C.成长性需要

D.所有需要