A.5° B.10° C.15° D.20° E.25°
A.上1/3 B.中1/3 C.中上1/3 D.中下1/3 E.下1/3
A.掌、尺側斜向背、橈側 B.掌、橈側斜向背、尺側 C.背、尺側斜向掌、橈側 D.背、橈側斜向掌、尺側 E.橈側斜向尺側