单项选择题
A.厂家相同 B.速率相同 C.波长相同 D.传输距离相同
A.17.21.2.15 B.17.21.3.15 C.172.168.0.49 D.192.168.0.49
A.DRRU3168-fa B.DRRU3158e-fa C.DRRU3162-fa D.AAU3210
A.eNodeB和RNC B.S-GW和P-GW C.eNodeB D.eNodeB和S-GW
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