单项选择题
A.owner B.agent C.Master D.All of the above
As compared to carbon dioxide，dry chemical has which ad...
单项选择题As compared to carbon dioxide，dry chemical has which advantage?（）
A.Cleaner B.Effective on metal fires C.Greater range D.More cooling effect
As a vessel changes course to starboard，the compass car...
单项选择题As a vessel changes course to starboard，the compass card in a magnetic compass（）.
A.remains aligned with compass north B.also turns to starboard C.first turns to starboard then counterclockwise to port D.turns counterclockwise to port
As a rule，ships of most configurations，when drifting in...
单项选择题As a rule，ships of most configurations，when drifting in calm water with negligible current，will lie（）.
A.bow to the wind B.beam to the wind C.stern to the wind D.with the wind on the quarter
