单项选择题
Important changes to charts and lights（including temporary ones），radio signals and sailing directions are listed in（）.
A.Weekly Admiralty Notices to Mariners B.The Mariners Handbook C.Ocean Passages for the World D.Symbols and Abbreviations used on Admiralty Charts，Chart 5011
单项选择题 For details of these and other lights the larger scale charts and Admiralty Lists should be （）.
单项选择题 Before personnel are lifted from a vessel in a personnel basket，the vessel should be（）.
单项选择题 An orange flag showing a black circle and square is a（）.
