单选题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（）.Aapproved oil-water separating equipmentBa fixed or portable containment system at the shore connectionCa spare pump in case the main pump is inoperativeDat least one outlet accessible from the weather deck
单选题
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 oil-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
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