A.1個/HP B.3個/HP C.5個/HP D.10個/HP E.15個/HP
A.1:(2~3) B.1:(0.5~1) C.1:(1~2) D.1:(3~5) E.1:5
A.主細(xì)胞 B.壁細(xì)胞 C.G細(xì)胞 D.黏液細(xì)胞 E.柱狀上皮細(xì)胞