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)（）.
A.constructive total loss B.salvage loss C.actual loss D.preferred loss
单项选择题 A report of casualty to a mobile offshore drilling unit must include（）.
单项选择题 A major health hazard of the product tert-butylamine is that it（）.
单项选择题 A fishing vessel casualty must be reported to the Coast Guard if it involves（）.
