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【单选题】
关于非离子多聚物沉淀蛋白的原理,下列说法错误的是( )A.
沉淀作用是聚合物与生物大分子发生共沉淀作用。
B.
由于聚合物有较强的疏水性,使生物大分子所带电荷改变而沉淀。
C.
聚合物与生物大分子之间以氢键相互作用形成复合物。
D.
通过空间位置排斥,使液体中生物大分子被迫挤聚在一起而发生沉淀。
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