题目内容：
根据下面资料，回答题 E-mail or electronic mail, is considered as the modem communication in the new age．It is carriedout in computers all over the world by millions of users．In this invisible world as many people call it, theusers can send and receive letters to and from every comer of the earth．They share thoughts with penpals (笔友)in New Zealand, ask strangers in Bombay (孟买)questions, debate with businessman in
Manhattan．All of these are just happening in computers as fast as the travelling of the light, no writingand speaking,no paper and stamps are necessary．
E-mail is a pipeline to thousands of experts on everything；it is a means of meeting people withsimilar interests or problems．But it is not a live talk--a real conversation like those in telephones．E-mailers compose letters at leisure on their computers, then send them by phone line to an on-lineservice, and then they go forward to the right place．A response can be back within hours, depending on
how often the recipient(接受者) checks in．
A vast global networks of on-line services for E-mail has been built．A lot of people are regularlyusing this service in the USA．People believe that E-mail, the computerized exchange, would createfriendship and business developments, and would change people's life in the world．
Which of the following expression is not for E-mail? A．Communication in new age．
A．Communication in new age．
B．Invisible world．
B．Invisible world．
C．A live talk．
C．A live talk．
D．Computerized exchange．
D．Computerized exchange．
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