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

[单选题]is the sending and receiving of the messages by computer. It is a fast, low-cost way of communicating worldwidE..A．LANB．Post officeC．E-MailD．Interface

[单选题]( )is the sending and receiving of the message by computer.It is a fast， lo

[单选题]( )is the sending and receiving of the messages by computer.It is a fast， l

[主观题]Theroomisinaterriblemess;it_________cleaned.A．)can’thavebeenB)mustn’thavebeenC．)shouldn’thavebeenD)wouldn’thavebeen

The room is in a terrible mess; it _______ cleaned.A. can’t have beenB. shouldn’

The room is in a terrible mess; it ()cleaned.A. can't have beenB. shouldn't have

[单选题]The receiving activities conduct analyses of the requirements with the requirements provider to ensure that a compatible, shared understanding is reached on the meaning of the requirements. The result of this analysis and dialog is an(74)set of requi

[单选题]The receiving activities conduct analyses of the requirements with the requirements provider to ensure that a compatible, shared understanding is reached on the meaning of the requirements. The result ofthis analysis and dialog is an（）set of requirem

[名词解释] 环接 circular receiving

[名词解释] 到发场 receiving and departure yard