A.15° B.10° C.8° D.5°
A.ML>AP B.ML=AP C.AP>ML D.周長=ML×2+AP×2
A.橫向橢圓形接受腔 B.ISNY(依斯尼)軟接受腔 C.坐骨包容吸著式接受腔 D.全接觸縱向橢圓形接受腔