15.所謂「縱距(Advance)」係指,在船舶迴旋運動中,由原航向開始用舵而使艏迴轉至那一航向
時,其重心在原航向所移動之距離?
(A)030°
(B)060°
(C)090°
(D)某一新航向
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統計: A(0), B(0), C(9), D(6), E(0) #1198996
統計: A(0), B(0), C(9), D(6), E(0) #1198996