When your vessel is proceeding to the area of traffic density, is used to determine the exact ranges of other ships or object in the vicinity.(1.0)
A.radar B.GPS C.DF D.Satellite Navigator正确答案A
When your vessel is proceeding to the area of traffic density, is used to determine the exact ranges of other ships or object in the vicinity.(1.0)
A.radar B.GPS C.DF D.Satellite Navigator正确答案A
