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单选题
On a nautical chart，the inner ring of a compass rose indicates（）.
A
true directions
B
compass error
C
deviation
D
magnetic directions
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考题
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单选题Which information does the outer ring of a compass rose on a nautical chart provide（）.A
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true directionsC
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单选题The compass rose on a nautical chart indicates both variation and （）.A
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Coast PilotsC
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单选题Magnetic compass deviation（）.A
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单选题Magnetic information on a chart may be （）.A
found in the center(s) of the compass rose(s)B
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