单选题Mariners are FIRST warned of serious defects or important changes to aids to navigation by means of（）.Amarine broadcast Notice to MarinersBWeekly Notices to MarinersCcorrected editions of chartsDLight Lists
单选题
Mariners are FIRST warned of serious defects or important changes to aids to navigation by means of（）.
A
marine broadcast Notice to Mariners
B
Weekly Notices to Mariners
C
corrected editions of charts
D
Light Lists
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