问题 单项选择题

面向具体的应用程序的数据库模式是()。

A.外模式

B.内模式

C.模式

D.存储模式

答案

参考答案:A

解析:8255A端口C按位置位/复位控制字的D1、D2、D3位用来指定要置位或复位的端口C的具体位置。

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.

小题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.小题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小题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小题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.小题5:The passage tells us _________.

A.some expensive cars

B.famous foreign cars

C.some cars made in China

D.different cars

填空题