非增压式柴油机()发生泄漏或进气短路,会引起柴油机气缸早期磨损,导致柴油机功率下降、排气冒烟、油耗上升。
A.燃油供给系统
B.点火系统
C.启动系统
D.空气供给系统
参考答案:D
I know the name of the pretty girl on the playground, but I am not sure . [ ]
A. how old is she
B. where she lives
C. where does she come from
D. how tall is she
除氧水箱水位高于()保护停凝结水泵。
A.3000mm;
B.3100mm;
C.32000mm
D.2900mm。