單項(xiàng)選擇題

According to the customs of the port, hatch covers are to be operated by （）.

A.stevedores
B.watchmen
C.winchmen
D.foremen

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單項(xiàng)選擇題

（）lashing bar needs renewing.

A. The lost
B. The used
C. The deformed
D. The small

單項(xiàng)選擇題

Four （）are needed to work this heavy derrick.

A.winches
B.gears
C.windlass
D.cranes

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