阿摩線上測驗
53 Vessel traffic services contribute to safety of life at sea, safety and efficiency of navigation and
protection of the marine environment, adjacent shore areas, work sites and offshore installations from possible _____ effects of maritime traffic.
(A) protective
(B) sound
(C) beneficial
(D) adverse
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統計： A(19), B(5), C(35), D(23), E(0) #3256417
統計： A(19), B(5), C(35), D(23), E(0) #3256417
