9.下列疾病何者最不好發於牙齦?
(A)oral focal mucinosis
(B)traumatic neuroma
(C)pyogenic granuloma
(D)giant cell fibroma
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統計: A(72), B(318), C(11), D(40), E(0) #3490117
統計: A(72), B(318), C(11), D(40), E(0) #3490117