找考题网-背景图
单项选择题

A.龙门吊出故障了吗?B.锚机出故障了吗?C.重吊杆出故障了吗?D.起货机出故障了吗?What’s the m……

What’s the matter with the winch?()

A.龙门吊出故障了吗?
B.锚机出故障了吗?
C.重吊杆出故障了吗?
D.起货机出故障了吗?