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單項(xiàng)選擇題

The（）(非包裝貨) is loaded and discharged by belt conveyer.

A. non-packed cargo
B. packed cargo
C. cased cargo
D. inboard cargo

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單項(xiàng)選擇題

This is a（）（折疊）type hatch cover.

A.folding
B.rolling
C.side-rolling
D.unfolding

單項(xiàng)選擇題

Sailors also keep （）（舷梯）watch.

A.deck
B.bridge
C.gangway
D.anchorage

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