单项选择题
The ship owner’s liability for cargo damage is covered under what marine insurance policy?（）.
A.Hull B.Cargo C.Protection and Indemnity D.Pollution
单项选择题 The securing of passenger cars on a Ro-Ro vessel requires（）.
单项选择题 The safety of the port should（）in respect of a vessel properly manned and equipped，and navigated and handled without negligence and in accordance with good seamanship.
单项选择题 The primary danger in helicopter fires is（）.
