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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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
A.prevailing wind directions
B.prevailing ocean current directions
C.probable surface current flow
D.shortest great circle routes
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
最新試題
On chart，bearings to near objects should be used in preference to objects farther off，because（）.
The soundings on the imperial chart are measured in（）.
What information is found in the chart title? （）
The maximum difference between mean time and apparent time is （）.
Where would you obtain data on currents for areas of the world not covered by the National Ocean Service（）.
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.
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?（）
The numeral in the center of a wind rose circle on a pilot chart indicates the （）.
When navigating in high latitudes and using a chart based on a Lambert conformal projection，（）.
When using a Lambert conformal chart in high latitudes，angles such as bearings are measured in reference to （）.