单项选择题
Under the regulations implementing MARPOL, a mobile offshore drilling unit is required to have an International Oil Pollution Prevention (IOPP) certificate when the unit （）.
A.is drilling on the Outer Continental Shelf B.moves to a new drilling location in U-Swaters C.engages in a voyage to a port of another country which is a party of MARPOL D.All of the above
单项选择题 Convection spreads a fire as a result of （）.
单项选择题 If your vessel has a starboard list after taking on fuel, you would transfer fuel （）.
单项选择题 Burning diesel oil should be treated as which class of fire?（）
