排除了是低分子量的二聚体和三聚体的结构问题补充:匿名 2013-05-23 12:21:38 null 匿名 2013-05-23 12:23:18 Exclude low molecular weight is the second and third spot in the Structure 匿名 2013-05-23 12:24:58 Removed is the low molecular weight dimer and the tripolymer structure ...