Which compensates for errors introduced when the vessel heels over（）.<br>A:The soft iron spheres on the arms of the binnacle<br>B:Magnets placed in trays inside the binnacle<br>C:A single vertical magnet beneath the compass<br>D:The Flinders bar

Which compensates for errors introduced when the vessel heels over（）.
A:The soft iron spheres on the arms of the binnacle
B:Magnets placed in trays inside the binnacle
C:A single vertical magnet beneath the compass
D:The Flinders bar

出自：海船船员证

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