A.A regulated anchorage
B.Fish trap areas
C.An area closed to the public
D.Underwater cables
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A.High water line
B.Low water line
C.Low water spring line
D.Tide level
A.Amphibious training areas
B.Grounds for dredge spoil
C.Fish trap areas
D.Gunnery exercise areas
A.on a regional basis
B.on a national basis
C.shown orderly
D.appeared from A to W
A.very rare
B.common
C.often
D.reasonable
A.SW of Cocos Islands
B.oceanic dangers or seamounts
C.undiscovered dangers
D.the continental shelf
最新試題
The short-long dashed，magenta lines parallel to York River Entrance Channel mark（）．
When navigating in high latitudes and using a chart based on a Lambert conformal projection，（）.
The broken magenta lines（long and short dashes）in and around Mobjack Bay indicate（）.
What information is NOT found in the chart title? （）
The arrangement of charts in the catalogue is（）.
A chart position enclosed by a square is a（n）（）.
The survey information upon which a chart is based is found （）.
The soundings on the chart are based on the depth of water available at （）.
Where would you obtain data on currents for areas of the world not covered by the National Ocean Service（）.
The revision date of a chart is printed on which area of the chart? （）