A.分析故障性質(zhì)→故障點粗測→故障點定位B.故障點粗測→分析故障性質(zhì)→故障點定位C.分析故障性質(zhì)→故障點定位→故障點粗測D.故障點定位→故障點粗測→分析故障性質(zhì)
A.A類B.B類C.C類D.D類
A.5KB.10KC.15KD.20K