問題詳情
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
參考答案
答案：D
統計：A:1,B:0,C:4,D:1,E:0
難度：計算中