A.0.5min B.1min C.1.5min D.2min
A.機(jī)車(chē)車(chē)載設(shè)備 B.電務(wù)車(chē)載設(shè)備 C.列車(chē)運(yùn)行監(jiān)控記錄裝置 D.調(diào)度命令無(wú)線傳送系統(tǒng)
A.單向AC400V接地 B.CRH380AL型動(dòng)車(chē)組電茶爐漏電流 C.APU故障 D.APU輸出電壓低