单项选择题
A.A 20-foot sailing vessel
B.A 26-foot tug and tow
C.An uninspected 35-foot passenger vessel
D.A Navy Destroyer
单项选择题 Which substance is NOT considered to be Oil under the pollution prevention regulations? （）
单项选择题 Which step is NOT generally taken when gas-freeing a tank?（）.
单项选择题 Which statement is TRUE concerning the ventilation of engine and fuel tank compartments on uninspected towing vessels using fuel with a flash point of 100°F?（）