单项选择题
A.Greater than the declination and both are of the same name
B.Less than the declination and both are of the same name
C.Greater than the declination and both are of contrary name
D.Less than the declination and both are of contrary name
单项选择题 （） is not likely to be a methods of Traffic Separation.
单项选择题 （） is a circular traffic lane used at junctions of several routes，within which traffic moves counterclockwise around a separation point or zone.
单项选择题 （） is a defined area within which ships must use particular caution and should follow the recommended direction of traffic flow.