题目内容

蛋白质的两性电离

A. 280NM
B. 蛋白质分子颗粒大小在1～100NM之间
C. 特定的空间构象被破坏，理化性质丧失
D. 260NM
E. 在一定条件下可解离成带正电荷或负电荷的基团

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