A.0.88bit/s B.0.66bit/s C.0.77bit/s D.0.99bit/s
A.100mm/50mm B.300mm/200mm C.200mm/100mm D.400mm/300mm
A.故障處理的難度及處理故障的人員。 B.故障對(duì)網(wǎng)絡(luò)和業(yè)務(wù)的影響情況; C.故障處理的難度; D.故障處理的時(shí)間;