單項(xiàng)選擇題

The（）(精致貨) must be handled with care.

A. bagged cargo
B. delicate cargo
C. cased cargo
D. non-packed cargo

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單項(xiàng)選擇題

The（）（吊桿）at hatch No.3 is in trouble.

A.winch
B.crane
C.derrick
D.gantry

單項(xiàng)選擇題

To avoid shock ,you should reduce speed by（）（低速）control.

A. low speed
B. high speed
C. inching
D. slow speed