()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
参考答案:C
()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
参考答案:C