下列关于聚丙烯酰胺凝胶电泳的说法错误的是() A.分离血清蛋白可以得到20种以上的组

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问题:

下列关于聚丙烯酰胺凝胶电泳的说法错误的是()

A.分离血清蛋白可以得到20种以上的组分

B.聚丙烯酰胺凝胶具有分子筛的作用

C.是区带电泳的一种

D.根据凝胶的形状可分为圆柱型和平版型两类

E.是最早使用的电泳技术

考点:临床医学检验临床免疫技术临床免疫技术综合练习临床免疫技术综合练习题库
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       One Sunday afternoon Mr. Green and his child, Mary, are in a big shop. Mr Green likes Mary and

wants to buy a new dress for her. Mary doesn't like the new dress. She likes something to eat. So her

father buys two kilos of apples for her, too. Mary also wants to buy some picture-books and coloured

pencils. There are many things and many people in the shop. They are men and women, old and young.

They all want to buy something there. The people in the shop are very friendly.

1. It is ________.

A. Saturday    

B. Monday      

C. Friday      

D. Sunday

2. Mary and ________ are in the shop.

A. Mrs Green  

B. his father      

C. her father    

D. her mother

3. Mary likes to buy ________.

A. a new dress

B. coloured books

C. apples, picture-books and coloured pencils

D. something to drink

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老年男人和女人高血压病发生率的规律是( )

A.男女无差别

B.女高于男

C.男高于女

D.无规律

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为促进机插秧的根系生长,达到返青快、分蘖早,一般在机插秧后()每亩追施尿素15公斤。

A、2-3天

B、4-5天

C、5-7天

D、7-10天

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简述平均数显著性检验和平均数差异显著性检验的区别和联系。

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游戏的内部心理特征包括游戏的动机、游戏性体验。

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