单项选择题
A.ships B.derricks C.cranes D.winch
The（）(精致货) must be handled with care.A. bagged cargoB. ...
单项选择题The（）(精致货) must be handled with care.
A. bagged cargo B. delicate cargo C. cased cargo D. non-packed cargo
The（）（吊杆）at hatch No.3 is in trouble.A.winchB.craneC.de...
单项选择题The（）（吊杆）at hatch No.3 is in trouble.
A.winch B.crane C.derrick D.gantry
To avoid shock ,you should reduce speed by（）（低速）control...
单项选择题To avoid shock ,you should reduce speed by（）（低速）control.
A. low speed B. high speed C. inching D. slow speed
