71.下列那一項診斷屬於斯布蘭格形態學分類法(Spranger's classification of morphogenesis)的發育不全 (dysplasia)？
(A)骨脆弱症(osteogenesis imperfecta)
(B)髖關節發育不全(developmental dysplasia of the hip)
(C)先天性多關節硬化症(arthrogryposis multiplex congenita)
(D)幼年期風濕性關節炎(juvenile rheumatoid arthritis)

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統計： A(2), B(7), C(0), D(1), E(0) #3972950