(73) is the sending and receiving of the message by computer. It is a fast, low-cost way of communicating worldwide。

题库:计算机网络管理员 类型:最佳选择题 时间:2017-07-03 13:33:49 免费下载:《单项选择》Word试卷

(73) is the sending and receiving of the message by computer. It is a fast, low-cost way of communicating worldwide。
A.WWW
B.E-mail
C.TFTP
D.TELNET

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