Black smoke exhausting from an operating diesel engine is an indication of poor combustion

White smoke exhausting from a diesel engine can result from ________.A.high exhaust temper

A diesel engine emits blue exhaust smoke as a result of ___________.A.cold intake airB.exc

His house is easily picked（) from the rest for it has a large black door.A overB outC o

Despite an overlay of quasi－literary French vocabulary stemming from the Norman Invasion o

White smoke exhausting from an operating diesel engine may indicate _____.A.a cracked line

To compile an exhaustive dictionary is an