单项选择题
The component in an inert gas system used for cleaning the gas of solid and sulphur combustion products，while simultaneously cooling the inert gas，is called the（）.
A.filter B.cooler C.scrubber D.purifier
单项选择题 The combined fan discharge rate in an inert gas system is related to the（）.
单项选择题 The blowers of an inert gas generation system aboard a tanker，will be automatically secured if（）.
单项选择题 Spreading oil on the open sea has the effect of（）.
