单项选择题
A.Steady B.Meet her C.Midships D.Stop engines
1 nautical mile is the lenth of an arc of a great circl...
单项选择题1 nautical mile is the lenth of an arc of a great circle which subtends an angel of（）at the center of the Earth.
A.1degree B.1 minute C.1second D.1.5 degree
A ship is side to be（）when the whole ship moves bodily ...
单项选择题A ship is side to be（）when the whole ship moves bodily to port and then to starboard.
A.rolling B.pitching C.heaving D.swaying
A ship is side to be（）when the bow and stern rise and f...
单项选择题A ship is side to be（）when the bow and stern rise and fall with the oncoming waves.
