39.開啟貨艙艙蓋時,若船身俯仰差太大時,應以何種設備來控制艙蓋滑行速度?
(A)Slack wire
(B)Ballast water system
(C)Windlass
(D)Hydrant
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統計: A(82), B(9), C(7), D(2), E(0) #1489050
統計: A(82), B(9), C(7), D(2), E(0) #1489050