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【判断题】
漓江从桂林到阳朔83公里的沿江两岸,是广西北部喀斯特地形发育最典型的地段。A.
正确
B.
错误
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【简答题】SDS-PAGE电泳时,蛋白质样品的迁移速率只与样品自身的( )有关,与此相比,聚丙烯酰胺凝胶电泳还受到样品所带( )和空间构型的影响
【简答题】My heart was beating fast when I start to make the speech. I had prepared very good but it was the first time for me to speak to so many student in the public. So I was very nervous when I began to sp...
【简答题】SDS-PAGE 电泳时,蛋白质样品的迁移速率只与样品自身的( )有关,与此相比,聚丙烯酰胺凝胶电泳还受到样品所带电荷数和( )的影响。
【单选题】-------- I had a really good weekend at my uncle’s. -------- ______________.
A.
Oh, that’s very nice of you.
B.
Congratulations.
C.
It’s a pleasure.
D.
Oh, I’m glad to hear that.
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