单项选择题
A.C B.Cl C.Co D.c
The chart of a beach area shows a very flat slope to th...
单项选择题The chart of a beach area shows a very flat slope to the underwater beach bottom. What type of breakers can be expected when trying to land a boat on this beach? （）
A.Surging B.Spilling C.Plunging D.Converging
The buoy symbol printed on your chart is leaning to the...
单项选择题The buoy symbol printed on your chart is leaning to the northeast. This indicates （）.
A.you should stay to the north or east of the buoy B.you should stay to the west or south of the buoy C.the buoy is a major lighted buoy D.nothing special for navigational purposes
The agonic line on an isomagnetic chart indicates the （...
单项选择题The agonic line on an isomagnetic chart indicates the （）.
A.magnetic equator B.magnetic longitude reference line C.points where there is no variation D.points where there is no annual change in variation
