相关考题
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单项选择题
Fire in the cabins. Close all fire doors and use the （）powder extinguisher.
A.dry
B.wet
C.foam
D.portable -
单项选择题
After joining the ship, the crew members should be （）with their emergency duties.
A.know
B.familiarize
C.familiar
D.familiarity -
单项选择题
Take off fore and aft boat （）.
A.plugs
B.nests
C.davits
D.covers
