A、240° B、180° C、120° D、60°
A、進氣0.28mm,排氣0.58mm B、進氣0.36mm,排氣0.69mm C、進氣0.25~0.30mm,排氣0.30~0.35mm D、進氣0.30~0.35mm,排氣0.35~0.40mm
A、圓柱 B、圓錐 C、單線 D、矩形