42 下列何種症候群與缺牙畸形(hypodontia)有關?
(A)鎖骨顱骨發育不良(cleidocranial dysplasia)
(B)克林非爾特症候群(Klinefelter syndrome)
(C)外胚層發育異常(ectodermal dysplasia)
(D)透納氏症候群(Turner’s syndrome)

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統計: A(6), B(0), C(38), D(1), E(0) #1276854