单项选择题
When a buoy is in position only during a certain period of the year，where may the dates when the buoy is in position be found?（）
A.Light List B.Notice to Mariners C.On the chart D.Coast Pilot
单项选择题 What is NOT an advantage of the rhumb line track over a great circle track? （）
单项选择题 What information is NOT found in the chart title? （）
单项选择题 What information is found in the chart title? （）
