单项选择题
A fire extinguisher is used for （）fires.
A. stopping
B. putting out
C. putting
D. finishing
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Who is in charge of oil spilling ? （）
A. Second officer.
B. Third officer.
C. Captain.
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Lifeboat launching is operated （）.
A.quarterly
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NO.2 lifeboat is located on （）side.
A.starboard
B.both
C.each
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