单项选择题
A.total and partial loss
B.4／4 collision liability
C.general average
D.all of the above
单项选择题 A vessel which is being assisted by an icebreaker would display a flag hoist consisting of the code numeral “4”when the vessel（）.
单项选择题 A vessel operating in class has met all the requirements of the（）.
单项选择题 A vessel has been damaged by fire. The survey shows the cost of repairs will exceed the value of the repaired vessel. This is an example of a(n)（）.