A.1-5-3-6-2-4 B.1-4-2-6-3-5 C.1-5-4-6-3-2 D.1-2-4-3-6-5
A.60° B.90° C.120° D.140°
A.進(jìn)氣沖程 B.作功沖程 C.排氣沖程 D.壓縮沖程