A.Feet
B.Yards
C.Fathoms
D.Meters
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A.fish trap areas
B.naval exercise areas
C.underwater cables
D.recommended track lines
A.A regulated anchorage
B.Fish trap areas
C.An area closed to the public
D.Underwater cables
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
最新試題
The only cylindrical chart projection widely used for navigation is the （）.
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（）.
Which chart symbol indicates the bottom is clay（）.
The soundings on the imperial chart are measured in（）.
The survey information upon which a chart is based is found （）.
What defines a great circle? （）
A chart position enclosed by a square is a（n）（）.
The revision date of a chart is printed on which area of the chart? （）
On chart，bearings to near objects should be used in preference to objects farther off，because（）.
The broken magenta lines（long and short dashes）in and around Mobjack Bay indicate（）.