问题 单项选择题

Internet上许多复杂网络和不同类型计算机之间能够互相通信的基础是( )。

A.X.25

B.ATM

C.Novell

D.TCP/IP

答案

参考答案:D

解析: Internet上最基本的通信协议是TCP/IP。为了在不同结构的计算机之间实现正常通信,要求联网用户共同遵守TCP/IP通信协议。

填空题
从方框中选择单词,带入短文空格内,使短文意思正确、通顺,再将其适当形式填入短文后的横线上。
(每词限用一次)。

Address       place       speak       really       nobody       practice       friendly       them       but       usually

     The verb "chat" means to talk (to someone) in a friendly, informal (非正式的) way. Today there are many 
1______ on the Internet where you can chat. You can chat with people all over the world, in many languages
and about many subjects. These places are 2______ called "chatroom". Sometimes you need to register (注册)
to enter a chatroom. This means that you need to provide a username (用户名) and possibly your e-mail
3______. Your username does not have to be your 4______ name. It can be any name you want. When you
have your username, other people in the chatroom will can you by that name and 5______ else can use it.
     Chatting is a good way to 6______ your informal English, Messages in a chatroom are usually short
sentences. Sometimes 7______ are not even sentences, 8______ just a few words that are not really
grammatically (语法) correct. It's a typical way in which we 9______ in a quick conversation with friends. To
save time, people often use abbreviations like TTYL (talk to you later)or IDK (I don't know). So don't go to a
chatroom to practice "perfect" English. Go to a chatroom to practice informal English and find new 10______.
You can even use a chatroom to help improve your typing skills if you want.
单项选择题