单项选择题
Hanging a barge off means to（）.
A.moor a damaged barge to the bank and leave B.remove and deliver a loaded barge from a multiple tow C.remove a barge while locking through D.tow an empty barge astern
单项选择题 Electrical wiring on all “T-Boats” must be（）。
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? （）
