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问题 单项选择题

下列关于Windows 2003中域的描述正确的是______。

A．在网络环境中所有的计算机称为一个域
B．同一个域中可以有多个备份域控制器
C．每个域中必须有主域控制器和备份域控制器
D．一个域中可以有多个主域控制器

答案

参考答案：B

单项选择题

轨道电路的跳线和引接线，断股不得超过（）。

A、1/5

B、1/4

C、1/3

D、1/2
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翻译题

阅读下面的短文，将划线句子翻译成中文。

     1. Today life is much better than before. Vision phone (可视电话) is used in some provinces. Maybe it

will be used in every family. People can have an examination about their health without a doctor or a nurse

in the room. 2. Now some people do some shopping at home.

     3. And how about our education? There have been more educational (教育的) programs on the radio,

on TV or on the Internet. Some children live very far away from their schools, more and more of them

don't need to go to school every day now. They can study at home. 4. Teachers teach them on the Internet.

     In the future, each family will have a robot. 5. Robots will help people with their housework. In some

years people can have a trip on the moon and some people can live under the sea in hot summer.

1.                                                                                                      

2.                                                                                                      

3.                                                                                                      

4.                                                                                                      

5.                                                                                                      

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