等节奏流水施工公式:计算机考题2
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_______is the sending and receiving of the messages by computer.It is a fast,low-cost way of communicating worldwide.
A.LAN
B.Post office
C.E-Mail
D.Interface
A.LAN
B.Post office
C.E-Mail
D.Interface
C.E-Mail
同上：邮件