单项选择题
The blowers of an inert gas generation system aboard a tanker，will be automatically secured if（）.
A.normal water supply at the water seal is lost B.the temperature of the inert gas being delivered to the cargo tanks is more than 150°F C.the cooling water supply to the scrubbers is lost D.all of the above
单项选择题 Spreading oil on the open sea has the effect of（）.
单项选择题 Sour crude oil（）.
单项选择题 Releasing oil from the sea anchor of a survival craft may（）.
