A vessel is heading magnetic east and

A vessel is heading magnetic east and its magnetic compass indicates a heading of 086°. Which action should be taken to remove this error during compass adjustment?（）

AIf the blue ends of the magnets are aft，and the fore-and-aft tray is at the top，you should add some magnets.
BIf the blue ends of the magnets are aft you should lower the fore-and-aft tray
CIf the blue ends of the magnets are aft，and the fore-and-aft tray is at the top，you should reverse the magnets
DIf the blue ends of the magnets are forward，and the fore-and-aft tray is at the bottom，you should add some magnet

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分类：救助合同与救助公约题库

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