問題詳情
21. An area which cannot be scanned by the ship’s radar because it is shielded by parts of itssuperstructure, mast, etc. We call it is:
(A) Blind secretary
(B) Blind sector
(C) Shading area
(D) Shackle area
參考答案
答案：B
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)