問題詳情

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

 
(B)

 
(C)

 
(D)

參考答案

答案：D
難度：非常困難0
統計：A(0),B(0),C(0),D(0),E(0)