To obtain accuracy in fixing by DF，（）and three stations should be used.<br>A:Parallel bearings<br>B:Long-range bearings<br>C:Short-range bearings<br>D:Cross bearings

To obtain accuracy in fixing by DF，（）and three stations should be used.
A:Parallel bearings
B:Long-range bearings
C:Short-range bearings
D:Cross bearings

出自：海船船员证

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