67.下列何種關節軟骨的病變最輕微?
(A)糜爛(erosion)
(B)潰瘍(ulceration)
(C)骨質象牙質化(eburnation)
(D)毛刷狀(fibrillation)
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統計: A(1803), B(232), C(222), D(799), E(0) #2181841
統計: A(1803), B(232), C(222), D(799), E(0) #2181841