A.甲正確B.乙正確C.甲乙都正確D.甲乙都不正確
A.前照燈B.霧燈C.制動燈D.轉(zhuǎn)向信號燈
A.閃光繼電器故障B.電池電壓過高C.兩側(cè)燈泡功率不一D.轉(zhuǎn)向開關(guān)故障