船舶通訊與航海英文(概要)題庫下載題庫

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35.Moving of an anchor over the sea bottom involuntarily because it is no longer preventing the movement of the vessel defines .
(A)dragging（of anchor）
(B)dredging（of anchor）
(C)weighing anchor
(D)walking-back anchor



35.Moving of an anchor over the sea bott..-阿摩線上測驗