33. Located: In _____ warnings: position of object confirmed.(依據IMO SMCP)
(A) navigational
(B) position
(C) sailing
(D) weather
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統計: A(496), B(78), C(55), D(5), E(0) #1776944
統計: A(496), B(78), C(55), D(5), E(0) #1776944