A.Surging
B.Spilling
C.Plunging
D.Converging
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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
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
最新試題
（）is not a position-fixing system.
On a Mercator chart，1 nautical mile is equal to（）.
Which aid is NOT marked on a chart with a magenta circle? （）
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（）.
Which information is found in the chart title（）.
The soundings on the imperial chart are measured in（）.
What defines a great circle? （）
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?（）
A chart with a scale of 1:80，000 would fall into the category of a（）.
The maximum difference between mean time and apparent time is （）.