問題詳情

20.When your ship is proceeding to the area of traffic density, _____is used to determine the exact range of other ships or objects in the vicinity.
(A)RADAR
(B)GPS
(C)Inmarsat-C
(D)GMDSS

參考答案

答案:A
難度:簡單0.756757
統計:A(28),B(2),C(2),D(2),E(0)

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