問題詳情

17.Are required number of portable extinguishers properly __________ in accommodationspaces, engine room, navigating bridge and radio room ?
(A)put
(B)placed
(C) located
(D)kept

參考答案

答案：C
難度：非常簡單1
統計：A(0),B(0),C(7),D(0),E(0)