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If a magnetic compass is not affected by any magne...

海船船员考试

单选题

If a magnetic compass is not affected by any magnetic field other than the Earth’s，which statement is TRUE?（）.

发布日期：2021-03-22

A.Compass error and variation are equal

B.Compass north will be true north

C.Variation will equal deviation

D.There will be no compass error

标签： magnetic compass affected magnetic field

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