单项选择题
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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相关考题
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单项选择题
Defective atomizer in a diesel engine will lead to（）.
A.smoky exhaust
B.starting failure
C.overload
D.over speed -
单项选择题
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 -
单项选择题
Cooling makes the engine metals their mechanical properties（）.
A.Remain
B.to remain
C.retain
D.to retain
