If the compass heading and the magnetic heading are the same then（）.<br>A:the deviation has been offset by the variation<br>B:there is something wrong with the compass<br>C:the compass is being influenced by nearby metals<br>D:there is no deviation on that heading

If the compass heading and the magnetic heading are the same then（）.
A:the deviation has been offset by the variation
B:there is something wrong with the compass
C:the compass is being influenced by nearby metals
D:there is no deviation on that heading

出自：海船船员证

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