单项选择题
A.GPS B.OMC C.FTP D.LMT
A.17.21.2.15 B.17.21.3.15 C.172.168.0.49 D.192.168.0.49
A.STAPB.X2APC.GTP-cD.GTP-u
A.1000M/全双工 B.AUTO(自协商) C.100M/全双工 D.100M/半双工
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