單項(xiàng)選擇題Defective air cooler in a diesel engine will lead to （）.
A.smoky exhaust
B.starting failure
C.overload
D.over speed
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1.單項(xiàng)選擇題Defective atomizer in a diesel engine will lead to（）.
A.smoky exhaust
B.starting failure
C.overload
D.over speed
2.單項(xiàng)選擇題A supercharged engine differs from an un-supercharged engine it operates at an increases pressure（）.
A.in which
B.on which
C.at which
D.in that
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