[名词解释] band 4.1 protein (带4.1蛋白)

cholesterol (胆固醇) phospholipids (磷脂) 证人证言的特点有（）。 ["A．客观性","B．多变性","C．不稳定性","D．复杂性"] band 3 protein (带3蛋白) glycophorin (血型糖蛋白) band 4.1 protein (带4.1蛋白)