A.variation
B.true directions
C.magnetic directions
D.annual rate of variation change
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A.Cly
B.Cla
C.Cl
D.C
A.In the Coast Pilot
B.In the Nautical Almanac
C.In the List of Lights
D.In the Sailing Directions
A.Feet
B.Yards
C.Fathoms
D.Meters
A.fish trap areas
B.naval exercise areas
C.underwater cables
D.recommended track lines
A.A regulated anchorage
B.Fish trap areas
C.An area closed to the public
D.Underwater cables
最新試題
When a buoy is in position only during a certain period of the year，where may the dates when the buoy is in position be found?（）
When using a Lambert conformal chart in high latitudes，angles such as bearings are measured in reference to （）.
Which information does the outer ring of a compass rose on a nautical chart provide（）.
When navigating in high latitudes and using a chart based on a Lambert conformal projection，（）.
A chart projection depicting the poles and a small area on either side of a connecting meridian，that is sometimes used for star charts，is the（）.
On chart，bearings to near objects should be used in preference to objects farther off，because（）.
The arrangement of charts in the catalogue is（）.
The description Racon beside an illustration on a chart would mean a （）.
（）is not a position-fixing system.
The short-long dashed magenta line around Gardiners Island marks（）.