单项选择题
The soundings on the imperial chart are measured in（）.
A.Feet
B.Yards
C.Fathoms
D.Meters
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相关考题
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单项选择题
The short-long dashed，magenta lines parallel to York River Entrance Channel mark（）．
A.fish trap areas
B.naval exercise areas
C.underwater cables
D.recommended track lines -
单项选择题
The short-long dashed magenta line around Gardiners Island marks（）.
A.A regulated anchorage
B.Fish trap areas
C.An area closed to the public
D.Underwater cables -
单项选择题
The shoreline on charts generally represents the mean（）.
A.High water line
B.Low water line
C.Low water spring line
D.Tide level
