49.牙釉柱(enamel rod)與柱間牙釉質(interrod enamel)中之氫氧磷灰石結晶(hydroxyapatite crystal)的最大不同點為下列何者?
(A)結晶成分(crystal component)
(B)結晶結構(crystal structure)
(C)結晶粗細(crystal diameter)
(D)結晶走向(crystal orientation)
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統計: A(4), B(34), C(7), D(387), E(0) #3489917
統計: A(4), B(34), C(7), D(387), E(0) #3489917