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
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相关考题
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单项选择题
The broken magenta lines（long and short dashes）in and around Mobjack Bay indicate（）.
A.Amphibious training areas
B.Grounds for dredge spoil
C.Fish trap areas
D.Gunnery exercise areas -
单项选择题
The arrangement of charts in the catalogue is（）.
A.on a regional basis
B.on a national basis
C.shown orderly
D.appeared from A to W -
单项选择题
That the scale of any part of a chart to be larger than the scale of the survey is（）.
A.very rare
B.common
C.often
D.reasonable
