单选题The rate of pressure rise during the period following fuel ignition in a diesel will result in （）Avalve overlapBvolumetric efficiencyCturbulence of the air changeDfuel efficiency
单选题
The rate of pressure rise during the period following fuel ignition in a diesel will result in （）
A
valve overlap
B
volumetric efficiency
C
turbulence of the air change
D
fuel efficiency
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