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單項選擇題

（）are published for the correction of Admiralty Charts．

A.Admiralty Sailing Directions
B.Admiralty List of Signals
C.Mariner's Handbook
D.Admiralty Notices to Mariners

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單項選擇題

A chart has extensive corrections to be made to it. When these are made and the chart is again printed，the chart issue is a （）.

A.first edition
B.new edition
C.revised edition
D.reprint

單項選擇題

Charts are subject to frequent correction according to （）.

A.Notices to Mariners
B.Mariner's handbook
C.Sailing Directions
D.Guide to Port Entry

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