单项选择题

A. chief officerB. captainC. bosunD. second officerThe ……

The sailors do cleaning and repair work under the supervision of the （）.

A. chief officer
B. captain
C. bosun
D. second officer

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单项选择题Cleaning is a constant job （）board a ship.

A.at
B.on
C.for
D.with

单项选择题Cleaning is a frequent （）on board a ship.

A.duty
B.responsibility
C.job
D.work

单项选择题Please return it after （）it.

A.use
B.used
C.using
D.to use

单项选择题The chief officer is responsible （）the overall maintenance of deck department.

A.for
B.to
C.with
D.of

单项选择题At sea, much of the （）time is spent maintaining the ship and her equipment in good condition.

A.officers’
B.engineers’
C.sailors’
D.pursers’