单项选择题
A properly honed diesel engine cylinder liner will（）
A.prevent piston ring wear B.shorten the ring break-in period C.prevent cylinder liner glazing D.appear slick and glazed
单项选择题 A diesel engine is supercharged in order to（）
单项选择题 Distortion of the spray pattern of a nozzle or injector may be indicated by a/an（）
单项选择题 The rate of pressure rise during the period following fuel ignition in a diesel will result in （）
