[名词解释] 出发场 departure yard
[名词解释] 编发场 marshalling-departure yard
[名词解释] 到达场 receiving yard
[名词解释] 环发 circular departure
[名词解释] 反发 opposite departure
[名词解释] Departure Angle离去角
[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, low-cost way of communicating worldwide。A.WWWB.E-mailC.TFTPD.TELNET