单项选择题
A.enter a traffic separation zone B.cross a submerged pipeline C.depart a regulated area D.depart a restricted area
At the master gyrocompass，the compass card is attached ...
单项选择题At the master gyrocompass，the compass card is attached to the（）.
A.spider element B.sensitive element C.link arm D.pickup transformer
At sea，we can use（）to fix the ship’s position.A.VHFB.St...
单项选择题At sea，we can use（）to fix the ship’s position.
A.VHF B.Steering Gear C.Rudder Indicator D.Loran
Assumption shall（）on the basis of scanty information es...
单项选择题Assumption shall（）on the basis of scanty information especially scanty radar information.
A.make B.be made C.not make D.not be made
