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When a vessel changes course from one cardinal heading to another cardinal heading whilea djusting the compass，which action should be taken?（）
A:The course change should be made rapidly to prevent transient induced magnetism while passing the intercardinal headings
B:After the new heading is reached，the vessel should steam on that course for at least two minutes before the adjustment
C:During the course change，you should gently tap the compass to remove any error caused by friction on the pivot bearing
D:After steadying on the new heading，the compass card should be slewed by a magnet and allowed to oscillate freely to remove any gaussin error

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出自：海船船员证

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