阿摩線上測驗
17. The vessel is sailing in a river and will be passing through a bridge. In order to avoid her mast to strike the bridge, which of the following items should be considered in advance ?
(A)Air draft
(B)Maximum draft
(C)Freeboard
(D)Mid-ship draft
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統計： A(3), B(1), C(1), D(0), E(0) #4054700
統計： A(3), B(1), C(1), D(0), E(0) #4054700
