A.1~3個 B.2~4個 C.3~5個 D.4~6個 E.5~7個
A.5°~10° B.10~15° C.15°~20° D.15°~25° E.20°~30°
A.馬蹄腎 B.駝峰腎 C.侏儒腎 D.海綿腎 E.多囊腎