48. 下列何者其上皮細胞具刷狀緣 (brush border)？
(A) 近曲小管 (proximal convoluted tubule)
(B) 遠曲小管 (distal convoluted tubule)
(C) 亨氏襻細肢 (thin limb of Henle's loop)
(D) 乳突管 (papillary duct)

題目解析這道題目詢問的是哪一種上皮細...