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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What does the abbreviation CD stand for on a nautical chart?A. chart datum B. chart delivery C. common datum

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单选题

On a nautical chart, the inner ring of a compass rose indicates ___ .A. true directions B. compass errorC. deviation D. magnetic directions

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On a Mercator chart, 1 nautical mile is equal to（等于） .A. 1 minute of longitude B. 1 degree of longitudeC. 1 minute of latitude D. 1 degree of latitude

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Full details of all lights and fog signals are shown on ___. A. large scale chart B. small scale chart C. ocean chart D. routing chart

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In Admiralty Sailing Direction, the distances at sea are given in ___ , and on land are in ___ .A. Nautical miles and cables； kilometers B. kilometers； Nautical miles and cablesC. Nautical miles； cables D. kilometers； fathom

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