問題詳情

21.「Wreck over which the exact depth is unknown, but which is considered to have a safeclearance at the depth shown」- it will be marked in the chart as：
(A) 


(B) 


(C) 


(D) 

參考答案

答案：D
難度：非常簡單1
統計：A(0),B(0),C(0),D(1),E(0)