If the flame from combustion in the cylinder of a four-stroke engine past the pi
2021-04-21
If the flame from combustion in the cylinder of a four-stroke engine past the piston into the space below, the accumulation of flammable mixture would be ignited, thus resulting in _____.
A.the crankcase explosion
B.lifting of the cylinder safety valve
C.a scavenge fire
D.opening of the manhole
正确答案：A
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