单项选择题
A.Cly B.Cla C.Cl D.C
Where would you obtain data on currents for areas of th...
单项选择题Where would you obtain data on currents for areas of the world not covered by the National Ocean Service（）.
A.In the Coast Pilot B.In the Nautical Almanac C.In the List of Lights D.In the Sailing Directions
The soundings on the imperial chart are measured in（）.A...
单项选择题The soundings on the imperial chart are measured in（）.
A.Feet B.Yards C.Fathoms D.Meters
The short-long dashed，magenta lines parallel to York Ri...
单项选择题The short-long dashed，magenta lines parallel to York River Entrance Channel mark（）．
A.fish trap areas B.naval exercise areas C.underwater cables D.recommended track lines
