单项选择题
A.K3-1B.K4-1C.K5-1D.K6-1
A.线路单盘OCH口B.线路单盘port口C.支路单盘port口D.支路单盘Client口
A.ODU1B.ODU2C.ODU3D.ODU2或者ODU3
A.A站点OUT机盘故障B.B站点OUT机盘故障C.A-B光缆中断D.A站点EMU单板故障
微信扫一扫,加关注免费搜题
