单选题The blower type crankcase ventilation system （）Aremoves combustible gases in the crankcaseBprevents the formation of combustible gases in the crankcaseCcools lubricating oilDimproves cold weather starting
单选题
The blower type crankcase ventilation system （）
A
removes combustible gases in the crankcase
B
prevents the formation of combustible gases in the crankcase
C
cools lubricating oil
D
improves cold weather starting
参考解析
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