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?（）

A、If the blue ends of the magnets are aft，and the fore-and-aft tray is at the top，you should add some magnets.

B、If the blue ends of the magnets are aft you should lower the fore-and-aft tray

C、If the blue ends of the magnets are aft，and the fore-and-aft tray is at the top，you should reverse the magnets

D、If the blue ends of the magnets are forward，and the fore-and-aft tray is at the bottom，you should add some magnets

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第7题

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