单项选择题
There is something wrong with the winch at hatch No.2.()
A.二舱的起货机出故障了。 B.一舱的起货机出故障了。 C.二舱的重吊杆出故障了。 D.一舱的中吊杆出故障了。
单项选择题 We are loading dangerous cargo now.()
单项选择题 The safe working load of the derrick is 5 tons.()
单项选择题 What’s the matter with the winch?()