問題詳情
25.What occasion should the scuppers be plugged?
(A)Only if fixed containment is not used
(B)Only if portable containment is not used
(C)Only if fixed containment drain is open
(D) Whenever the vessel is being bunkered
參考答案
答案：D
難度：適中0.555556
統計：A(1),B(5),C(4),D(15),E(0)