阿摩線上測驗
31 The Coast Guard is responsible for providing a safe, efficient, and_______ waterway system to support domestic
commerce, international trade, and military sealift operations.
(A)navigable
(B)capable
(C)desirable
(D)negotiable
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統計： A(115), B(71), C(28), D(26), E(0) #1200212
統計： A(115), B(71), C(28), D(26), E(0) #1200212
