用于免疫球蛋白鉴定（）。
A.醋酸纤维膜电泳
B.琼脂免疫电泳
C.对流免疫电泳
D.火箭电泳
E.聚丙烯酰胺凝胶电泳
参考答案：A
民法是调整平等主体的公民之间、法人之间、（）的财产关系和人身关系的法律。
Scientists say human activity contributes to climate change, but they do not agree on the rate
______ climate change may be developing. [ ]
A. with which
B. with that
C. at which
D. at that
