单项选择题
At sea, much of the sailor’s time is spent （）the ship and keeping her equipment in good condition.
A.to maintain
B.maintaining
C.maintenance
D.maintain
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相关考题
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单项选择题
（）is in charge of the common tools of the deck department.
A. The chief officer
B. The duty sailor
C. The bosun
D. Captain -
单项选择题
（）are not included in the common tools.
A. Screwdrivers
B. Derricks
C. Chipping hammers
D. Saws -
单项选择题
（）is the officer responsible for the overall maintenance of deck department.
A. Bosun
B. Chief officer
C. Third officer
D. Second officer
