複選題
9.Which of the following is a disorder caused by a genetic mutation in the keratin gene?
(A) Cystic fibrosis
(B) Alzheimer's disease
(C) Epidermolysis bullosa
(D) Sickle cell anemia
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統計: A(18), B(2), C(51), D(3), E(0) #3094123
統計: A(18), B(2), C(51), D(3), E(0) #3094123