单项选择题

What business do you have?
—I want to see your （）(船长).

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

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单项选择题

--Where is the（）(水手长)?
--He’s in his room.

A.captain
B.bosun
C.pilot
D.agent

单项选择题

A. danger area
B. safety area
C. danger room
D. safety room

单项选择题

A. head lines
B. mooring lines
C. breast lines
D. stern lines