問題詳情
31. You have berthed in a port area with other tank vessels. What signal is displayed by a vesselto indicate it is transferring flammable or combustible or liquid cargo at night?
(A) A flashing yellow light.
(B) A red light visible all around the horizon.
(C) A green light visible all around the horizon.
(D) An illuminated red and yellow caution flag.
參考答案
答案：B
難度：簡單0.727
書單：沒有書單，新增