阿摩線上測驗
28.Union purchase means a method of cargo handling by _________ two derricks, one is fixed over
the hatch, the other over the ship’s side.
(A)use
(B)collect
(C)changing
(D)combining
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統計： A(20), B(24), C(28), D(121), E(0) #625466
統計： A(20), B(24), C(28), D(121), E(0) #625466
