A.睡覺 B.打鬧 C.搖晃座椅
A.易燃 B.易爆 C.易斷
A.5 B.10 C.15
A.監(jiān)控 B.停電 C.警示
A.機頭 B.機尾 C.機頭與機尾同時
A.避災(zāi)路線指示牌 B.路標 C.警標
A.0.5% B.1% C.2%
A.容易自燃 B.自燃 C.不易自燃
A.37KW B.45KW C.22KW