单项选择题
A.the disabled vessel should be towed to the nearest port
B.the disabled vessel should be inspected for flammable gases
C.passengers should always be removed from the disabled vessel
D.personnel on the disabled vessel should don PFD's
单项选择题 For pumping the bilges，a 54 foot long “T-Boat”，which is not a ferry，but is certificated to carry 30 passengers，must be fitted with at least（）.
单项选择题 For optimum stability during jacking operations，mat ballast tanks or spud cans should be（）.
单项选择题 For means of abandonment of a ship，which type of embarkation does not require prior approval by the Coast Guard?（）