The short-long dashed，magenta lines parallel to York River Entrance Channel mark（）．<br>A:fish trap areas<br>B:naval exercise areas<br>C:underwater cables<br>D:recommended track lines

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

出自：海船船员证

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