单选:用于纯化酶和受体蛋白的最好方法是()

题目内容:
用于纯化酶和受体蛋白的最好方法是()
A.盐析法
B.亲和层析
C.凝胶层析
D.离子交换层析
E.有机溶剂沉淀法
参考答案:【答案仅供学习,请勿对照自行用药等】

Troubled corporations must sometimes declare bankruptcy when the level of their

Troubled corporations must sometimes declare bankruptcy when the level of their debt becomes________

查看答案

We will lose almost half of our accumulated pension funds if the merger_________

We will lose almost half of our accumulated pension funds if the merger__________ according to the c

查看答案

中小学老师采用的“小红花”“红花榜”是一种代币奖励法。(  )

中小学老师采用的“小红花”“红花榜”是一种代币奖励法。(  )判断题 对错

查看答案