单项选择题
A disadvantage of using chain lashing on heavy vehicles aboard Ro-Ro vessels is that it is （）.
A.heavy B.easily damaged C.affected by temperature D.costly relative to the strength ratio
单项选择题 A chain bridle is preferable to a wire rope towing bridle on a long ocean tow because chain （）.
单项选择题 A Certificate of Financial Responsibility attests that the vessel（）.
单项选择题 （）shall the amount of compensation from PICC exceed the insured amount of the insured ship.
