When navigating using DGPS（Differential Global Positioning System）you may expect your position to be accurate to within a radius of（）.<br>A:10 meters<br>B:20 meters<br>C:50 meters<br>D:100 meters

When navigating using DGPS（Differential Global Positioning System）you may expect your position to be accurate to within a radius of（）.
A:10 meters
B:20 meters
C:50 meters
D:100 meters

出自：海船船员证

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