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單項選擇題

Persons who load and discharge ships are called （）(裝卸工人).

A. cargo workers
B. dockers
C. port men
D. stevedores

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單項選擇題

There is no power for the （）(起貨機).

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

單項選擇題

Containers are loaded and discharged by （）(龍門吊).

A. ship’s derricks
B. fork trucks
C. gantry cranes
D. shore cranes