阿摩線上測驗
39. What kind of protein secondary structure is hair α-keratin made of?
(A) α-helix
(B) β-sheet
(C) β-turns
(D) Random coils
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統計： A(1), B(0), C(0), D(1), E(0) #3077656
統計： A(1), B(0), C(0), D(1), E(0) #3077656
