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单项选择题
A.将来自馈线的RS485信号转换成OOK信号,输出给RCU
B.将来自RCU的RS485信号转换成OOK信号,输出到馈线
C.将来自馈线的交流电源转供给RCU
D.其他
单项选择题
A.TerminalLocation.UnlimitedCountAllowed
B.TerminalLocation.MultiSupport
C.TerminalLocation.CheckImmediateAllowed
D.TerminalLocation.MaximumNotificationAddresses
单项选择题
A.GetLocation
B.GetTerminalDistance
C.GetLocationForGroup
D.StartGeographicalNotification
单项选择题
A.业务开通
B.客户购买
C.业务付费
D.业务交付