74.下列那一個胺基酸在中性環境下(pH=7),其支鏈(side-chain)會帶正電?
(A)丙胺酸(alanine)
(B)精胺酸(arginine)
(C)天門冬醯胺(asparagine)
(D)天門冬胺酸(aspartic acid)
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統計: A(27), B(653), C(82), D(97), E(0) #2971698
統計: A(27), B(653), C(82), D(97), E(0) #2971698