单项选择题
Electrical wiring on all “T-Boats” must be（）。
A.concealed to prevent mechanical damage B.concealed so the boat can be maintained more easily C.protected from the weather D.in an accessible place behind the ceiling
单项选择题 Damage to another vessel’s cargo，caused by a collision，is covered under which marine insurance policy?（）.
单项选择题 Carbon dioxide as a fire fighting agent has which advantage over other agents? （）
单项选择题 Before sailing for a foreign port，what document must you get?（）.
