属于造成船舶碰撞事故的船舶因素中不包括()。
A.舵机突然失灵
B.主机突然故障
C.辅机突然跳电
D.起货机突然故障
参考答案:D
-Can I have some meat?
-Certainly,just_______. [ ]
A. take it as you like
B. eat it as you please
C. help yourself
D. help yourself at home
在使用行灯时,其工作电压不应超过()。
A.220V
B.120V
C.48V
D.36V