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【单选题】
首次创用固体培养基和细菌染色技术的是( )A.
文虎克
B.
法国化学家巴斯德
C.
英国外科医生李斯特
D.
俄国的伊凡诺夫斯基
E.
德国医生
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举一反三
【简答题】When do efficient readers 'say' words? ______.
【单选题】以淀粉胶、琼脂或琼脂糖凝胶、聚丙烯酰胺凝胶等作为支持介质的区带电泳法称为
A.
等电聚焦电泳
B.
毛细管电泳
C.
凝胶电泳
D.
醋酸纤维素薄膜电泳
E.
硝酸纤维素薄膜电泳
【单选题】— _______? — Will you please get me some medicine so that I can have a good sleep? [ ]
A.
How are you feeling
B.
What's the matter
C.
Is there anything wrong
D.
Can I help you
【单选题】以淀粉胶、琼脂或琼脂糖凝胶、聚丙烯酰胺凝胶等作为支持介质的区带电泳法是
A.
醋酸纤维素薄膜电泳
B.
等电聚焦电泳
C.
凝胶电泳
D.
毛细管电泳
E.
硝酸纤维素薄膜电泳
【单选题】— Can I have your library card, please? — _ [ ]
A.
Yes. Here you are.
B.
No, you can't.
C.
I think so.
D.
Excuse. me.
【简答题】Hello, girls and boys! My name is David. I 1 Canada. I ’ m in the USA now. I like 2 here. So I often eat a lot of food. I have breakfast at home. 3 breakfast, I eat eggs and apples. I 4 milk at all. I...
【简答题】______is last recommended to the readers when they are under a bear attack.
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