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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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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

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