阿摩線上測驗
7. For ship position, which one of the followings has been verified?
(A) Running Fix
(B) EP position
(C) AP position
(D) GPS position .
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統計： A(557), B(191), C(112), D(571), E(19) #2334842
統計： A(557), B(191), C(112), D(571), E(19) #2334842
