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
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相关考题
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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 -
单项选择题
Solid green arrows on the main body of a pilot chart indicate （）.
A.prevailing wind directions
B.prevailing ocean current directions
C.probable surface current flow
D.shortest great circle routes -
单项选择题
On the south and the east coasts of Block Island are circles with a dot in the center and labeled CUP. This is a （）.
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
