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單項選擇題

（）loading,5 drums were found leaking.

A.In
B.from
C.At
D.During

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單項選擇題

（）refers to the angle between true north and the heading line of the ship.

A.True position
B.True meridian
C.True course
D.True bearing

單項選擇題

（）tankers over 100 meters long must not proceed beyond Dongbei buoy.

A.Loading
B.Load
C.Lade
D.Laden

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