A.prevailing wind directions
B.prevailing ocean current directions
C.probable surface current flow
D.shortest great circle routes
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A.conspicuous object
B.steep depression in the surrounding hills that resembles a cup
C.domed structure useful for navigation
D.calling-up-point used for traffic control
A.published with
B.combined with
C.in connection with
D.subject to
A.with
B.from
C.on
D.by
A.found in the center(s) of the compass rose(s)
B.indicated by isogonic lines
C.found in a note on the chart
D.All of the above
A.red triangle with the letter R
B.white triangle with the letters RG
C.green square with the letter G
D.white square with the letters GR
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Which information is found in the chart title（）.
The numeral in the center of a wind rose circle on a pilot chart indicates the （）.
On chart，bearings to near objects should be used in preference to objects farther off，because（）.
A chart with a scale of 1:80，000 would fall into the category of a（）.
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（）.
What information is found in the chart title? （）
The short-long dashed，magenta lines parallel to York River Entrance Channel mark（）．
The description Racon beside an illustration on a chart would mean a （）.
The path that a vessel is expected to follow，represented on a chart by a line drawn from the point of departure to the point of arrival，is the（）.
The arrangement of charts in the catalogue is（）.