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單項選擇題

Pump out No.2 port ballast tank to（）.

A.keep vessel afloating
B.refloat vessel listing to starboard
C.make vessel all-right
D.bring vessel upright

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單項選擇題

Protective clothing must be worn while sampling hazardous cargo on a tanker，and as a minimum includes（）.

A.a hood or hard hat
B.a face mask or goggles
C.boots
D.chemical resistant gloves

單項選擇題

On the all-purpose nozzle，the position of the valve when the handle is all the way forward is（）.

A.shut
B.fog
C.solid stream
D.spray