单项选择题
A.bow line B.breast line C.spring line D.stern line
A mooring line leading 45°to the keel，used to check for...
单项选择题A mooring line leading 45°to the keel，used to check forward or astern movement of a vessel，is called a（）.
A.spring line B.warp line C.bow line D.breast line
A look-out should report objects sighted using（）.A.true...
单项选择题A look-out should report objects sighted using（）.
A.true bearings B.magnetic bearings C.gyro bearings D.relative bearings
A lookout can leave his station（）.A.at the end of the w...
单项选择题A lookout can leave his station（）.
A.at the end of the watch B.at any time C.ONLY when properly relieved D.15 minutes before the end of the watch
