问题
单项选择题 A1/A2型题
等电聚焦凝胶电泳用途（）。
A.盐的分离
B.核酸的分离
C.抗原定量测定
D.蛋白质的分离
E.水的净化
答案
参考答案：D
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等电聚焦凝胶电泳用途（）。
A.盐的分离
B.核酸的分离
C.抗原定量测定
D.蛋白质的分离
E.水的净化
参考答案：D
阅读下面短文，掌握大意，然后从各小题所给的A、B、C、D四个选项中选出最佳选项 When I was a girl, in the deserts of Somalia（索马里）, my family was nomadic（游牧的）, 36 with our animals, and leading a happy life． I was about thirteen 37 my father called me at the end of a hot day．“Come and 38 here．” He said．“I’ve found you a 39 ! We have arranged that he will 40 me five camels．“ That night I ran away．I was 41．For almost three weeks, I walked  42 the desert, and finally I got to my auntie’s house in Mogadishu．Auntie’s husband was an ambassador（大使）, and in a few months I 43 Britain to work at his London house．One day a 44 called Michael Goss saw me in the street．He took my picture and the photographs were 45 ．“You should try and do 46 ,” he told me．When my aunt and uncle 47 Africa, I stayed in London．I found a place to stay and got 48 at McDonald’s before I took Michael Goss’s photographs to an agency one day．They 49 me to a studio, and my picture appeared 50 of the Pirelli calendar．Soon after that, the agency got me 51 in the James Bond film The Living Daylights． That was seven years ago．Since then I’ve done modeling all over the world and I’ve had frequent 52 in magazines such as Vogue and Elle．I have 53 hosted the US music program Soul Train． Once 54 five camels, now I can 55 up to ₤5000 for one day’s work．I have gone from the bottom to the top．
 ng to eat B．a job C．a bedroom D a workroom
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