How is the Master or operator of a vessel required to keep the crew informed of the regulations concerning the discharging of garbage overboard?（）.

单项选择题Biodegradation of the oil slick in sea water is assisted by all the following marine micro-organisms which are capable of metabolising oil compounds except（）.

A.bacteria
B.moulds
C.yeasts
D.seals

单项选择题Before operating a non-oceangoing ship greater than 100 gross tons it must have a fixed piping system to discharge oily mixtures ashore. This system must include（）.

A.approved oily-water separating equipment
B.a fixed or portable containment system at the shore connection
C.a spare pump in case the main pump is inoperative
D.at least one outlet accessible from the weather deck

单项选择题Application for a waiver of any requirements of the regulations for oil transfer operations must be submitted to the（）.

A.District Commander
B.Commandant
C.Captain of the Port
D.nearest MSA office

单项选择题Any discharge into the sea of oil or oily mixtures from ships to which this Annex of MARPOL 73 78 applies shall be（）except when special conditions are satisfied.

A.required
B.requested
C.promoted
D.prohibited

单项选择题Annex V to MARPOL 73 78 contains requirements pertaining to the discharge into the marine environment of（）.

A.oil
B.garbage
C.noxious liquid substances
D.None of the above