A.2’-OH和5’-P B.2’-OH和3’-P C.3’-OH和2’-P D.3’-OH和5’-P
A.γ-干擾素 B.紅細(xì)胞生成素 C.重組鏈激酶 D.堿性成纖維細(xì)胞
A.25-50% B.50-100% C.75-100% D.75-105%