問題詳情

10.Vessel Traffic Services (VTS) means service designed to ________the safety and efficiency ofvessel traffic and to protect the environment.
(A)increase
(B)monitor
(C)improve
(D)control

參考答案

答案：C
難度：適中0.521739
統計：A(8),B(1),C(12),D(2),E(0)