单项选择题
A.longitude line B.latitude line C.line of position D.fix
A large navigational buoy (LNB) is painted（）.A.redB.yel...
单项选择题A large navigational buoy (LNB) is painted（）.
A.red B.yellow C.with red and white vertical stripes D.with a distinct color and pattern unique to each buoy
A fairly accurate estimation of a ship’s position can b...
单项选择题A fairly accurate estimation of a ship’s position can be calculated by a technique known as（）.
A.dead reckoning B.Pilotage C.great circle sailing D.geographic navigation
A dead reckoning (DR) plot（）.A.must utilize magnetic co...
单项选择题A dead reckoning (DR) plot（）.
A.must utilize magnetic courses B.must take set and drift into account C.should be replotted hourly D.should be started each time the vessel's position is fixed
