電力機(jī)車司機(jī)資格考試(精編版)內(nèi)燃直流(DF7)單項(xiàng)選擇題每日一練(2019.01.23)

A.600V
B.770V
C.880V

A.YC1
B.YC2
C.YC1、YC2

A.LLC→LC→C1～C6
B.C1～C6→LC→LLC
C.LC→C1～C6→LLC

A.5
B.6
C.7

A.0.5℅
B.1℅
C.2℅