因特网的主要组成部分有通信线路、路由器、信息资源和( )。A)

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问题单项选择题

因特网的主要组成部分有通信线路、路由器、信息资源和( )。

A) 服务器与客户机
B) 网桥与网关
C) 光纤
D) WWW服务器

答案

参考答案：A

解析：因特网主要由通信线路、路由器、服务器与客户机和信息资源组成。

填空题

用括号中单词的适当形式填空。

1. Let's hope that all our trouble will (appear) soon.

2. The local people are ( thank) that the whole nation are helping them rebuild the town.

3. Lots of (foreign)come to visit the old town every year.

4. Don't mind (offer)your help to others whenever necessary

5. He works in the (big) computer company in the world.

6. There are (hundred) of people dancing at the square after supper.

7. My mother was (water) the flowers when I came in.

8. She is proud of (she)for not giving up easily.

9. The boy sat down excitedly because he answered the difficult question ( correct).

10. Everybody likes to ask him for help because he often (come) up with good ideas.

多项选择题

抽水蓄能电站按布置特点可分哪几种类型（）？

A.地面式抽水蓄能电站

B.地下式抽水蓄能电站

C.常规式抽水蓄能电站

D.特殊布置式抽水蓄能电站