问题
单项选择题
（）is a digitized“picture”of a chart.
A.Vector chart format
B.Raster chart data
C.pixel
D.Electronic Nautical Chart
答案
参考答案：B
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（）is a digitized“picture”of a chart.
A.Vector chart format
B.Raster chart data
C.pixel
D.Electronic Nautical Chart
参考答案：B