单项选择题
A.A ship-to-ship mode B.A ship-to-shore mode C.Integrated with a vessel traffic system D.Sending out information through broadcast automatically
（）is where the crew eat their meals.A.The funnelB.The m...
单项选择题（）is where the crew eat their meals.
A.The funnel B.The messroom C.The galley D.The satellite antenna
When the wave period and the apparent rolling period ar...
单项选择题When the wave period and the apparent rolling period are the same（）.
A.synchronous rolling occurs B.roll period decreases C.roll period increases D.roll amplitude is dampened
In the Northern hemisphere northerly winds may cause te...
单项选择题In the Northern hemisphere northerly winds may cause temperature（）.
A.falling B.rising C.constant D.same
