利用流动相中的离子能与固定相进行可逆的交换性质来分离离子型化合物的方法是 ["A．凝胶层析法","B．吸附层析法","C．分配层析法","D．亲和层析法","E．离子交换层析法"]
利用电泳和电渗流的电动力学原理，在一种空芯的微小内径的毛细管中进行混合物的高效分离技术称为 ["A．等电聚焦电泳","B．毛细管电泳","C．凝胶电泳","D．醋酸纤维素薄膜电泳","E．硝酸纤维素薄膜电泳"]
以淀粉胶、琼脂或琼脂糖凝胶、聚丙烯酰胺凝胶等作为支持介质的区带电泳法称为 ["A．等电聚焦电泳","B．毛细管电泳","C．凝胶电泳","D．醋酸纤维素薄膜电泳","E．硝酸纤维素薄膜电泳"]
类固醇激素的前体是 ["A．胆固醇","B．蛋白质","C．葡萄糖","D．胺类","E．核酸"]
不属于类固醇激素的是 ["A．糖皮质激素","B．睾酮","C．多巴胺","D．醛固酮","E．雌激素"]
上层滞水的特点。
