单项选择题
A chock is a（）.
A.deck fitting used to secured mooring lines
B.casting fitting at the side of a weatherdeck, used as a fairlead
C.sharp block of wood used to support hygroscopic cargo
D.smoke pipe for the galley stove
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相关考题
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单项选择题
A C02 portable extinguisher is annually checked by（）.
A.reading the gage pressure
B.weighing the extinguisher
C.discharging a small amount of CO2
D.seeing if the seal has been broken -
单项选择题
A contra-guide is a type of（）.
A.bow thruster
B.cargo gear
C.steering engine
D.rudder -
单项选择题
A dead reckoning (DR) plot（）.
A.must utilize magnatic courses
B.must take set and drift into account
C.should be replotted hourly
D.should be started each time the vessels position is fixed
