高压液相层析
参考答案:
使用颗粒极细的介质,在高压下分离蛋白质或其他分子混合物的层析技术。
Taobao is Asia's largest retail(零售的)network platform, ________ people can buy and sell many
kinds of things.[ ]
A. when
B. that
C. where
D. whose
进入冰区航行前,各水舱的水量不得超过:()
A.70%
B.80%
C.90%
D.95%