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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A.latitude scale near the middle of the track line
B.longitude scale near the middle of the track line
C.latitude scale at the midlatitude of the chart
D.latitude or longitude scale at the middle of the scale
A.fixed to
B.needed for
C.pushed to
D.drawn to
A.U.S.A
B.China
C.U.K
D.Japan
A.fix
B.line of position
C.relative bearing
D.range
A.fix
B.estimated position
C.dead reckoning position
D.running fix
最新試題
The short-long dashed，magenta lines parallel to York River Entrance Channel mark（）．
That the scale of any part of a chart to be larger than the scale of the survey is（）.
On chart，bearings to near objects should be used in preference to objects farther off，because（）.
A chart position enclosed by a square is a（n）（）.
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 is NOT an advantage of the rhumb line track over a great circle track? （）
What information is NOT found in the chart title? （）
Particular care is needed when navigating in the vicinity of（）as very few of these features have been fully surveyed to modern standards to determine their correct position，full extent，or the least depth over them.
On a Mercator chart，1 nautical mile is equal to（）.
Which chart symbol indicates the bottom is clay（）.