题目内容

The purposes of the _____ are to remove excess heat , to keep the engine operating and to warm up the engine

A. engine lubrication system
B. engine cooling system
C. crank mechanism
D. valve train

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The main jobs of the______ are to keep the radiator fluid from freezing and to keep the engine from overheating

A. engine oil
B. clean oil
C. lubricant
D. coolant

main component of cooling system( )

A. water pump
B.oil filter
C. antifreeze
D. radiator

inlet tank ( )

oil screen