单项选择题
A.dead-reckoning position B.fix C.probable position D.running fix
A line of position is().A.a line connecting two charted...
单项选择题A line of position is().
A.a line connecting two charted objects B.a line on some point of which the vessel may be presumed to be located C.the position of your vessel D.not used in a running fix
A line connecting all possible positions of your vessel...
单项选择题A line connecting all possible positions of your vessel at any given time is a().
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