A.l0Mbps,100m B.10Mbps,200m C.10Mbps,500m D.16Mbps,500m
A.目錄服務(wù) B.視頻傳輸服務(wù) C.數(shù)據(jù)庫服務(wù) D.交換式網(wǎng)絡(luò)服務(wù)
A.802.7 B.802.8 C.802.9 D.802.3U