64.下圖為牙齒的組織學照片,圖片中箭頭所指之構造為下列何者?
(A)原生牙本質(primary dentin)
(B)繼生牙本質(secondary dentin)
(C)修補性牙本質(reparative dentin)
(D)硬化牙本質(sclerotic dentin)
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統計: A(81), B(113), C(352), D(44), E(0) #1727672
統計: A(81), B(113), C(352), D(44), E(0) #1727672