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【单选题】
对分子量相同而电荷不同的蛋白质分离宜采用的电泳技术为A.
醋酸纤维薄膜电泳
B.
琼脂糖凝胶电泳
C.
转移电泳
D.
等电聚焦
E.
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【简答题】Choose and write. 智力问答。(选词填空) 1. -Where does a lion live? -In a . 2. -Where does a snake live? -In a . 3. -Where does a bird live? -In a . 4. -Where does a fish live? -In a .
【简答题】Look and choose.（看图，选词填空） long small big short 1. The T-shirt is good, but it's too ______. 2. The T-shirt is OK, but it's too ______. 3. The dress is pretty, but it's too ______. 4. The...
【简答题】Choose the word to complete the sentence.(选词填空。) when where how what if because so but and while 1. Please tell me _________ I can find the way to Dongfang Building. 2. You will see ...
【简答题】Read and choose. (选词填空) up away off 1. Hang _______ your red skirt. 2. Take _______ your brown jacket. 3. Put _______ your green sweater.
【简答题】Choose and write.智力问答。(选词填空) 1. -What animal has _____? -A camel. 2. -What animal has a ____ ? -A kangaroo. 3. -What animal has ________? -A tiger. 4. -What animal has a _____? -An elephant.
【简答题】选词填空。 provide, receive, choose, continue, achieve 1. We all dream about things that we hope to _____ in the future. 2. We _____ several different answers. 3. I can achieve that by _____ the ri...
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