单项选择题
A. taken in B. slack off C. adjust D. send out
There are many （）(类型)of ship’s cargo handling equipment...
单项选择题There are many （）(类型)of ship’s cargo handling equipment.
A.types B.kind C.series D.type
When the derrick changes its （）(角度), its lifting capaci...
单项选择题When the derrick changes its （）(角度), its lifting capacity changes correspondingly.
A.angel B.length C.height D.angle
The derrick can’t be （）(超载).A.exceededB.overloadedC.ove...
单项选择题The derrick can’t be （）(超载).
A.exceeded B.overloaded C.overtaken D.loaded
