48.Tomes' process最早出現於牙釉質形成(amelogenesis)之那一階段?
(A)presecretory stage中的morphogenetic phase
(B)presecretory stage中的differentiation phase
(C)secretory stage
(D)maturation stage
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統計: A(168), B(935), C(251), D(24), E(0) #1033423
統計: A(168), B(935), C(251), D(24), E(0) #1033423