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1986年底,我结束了在瑞典短期的访问学者工作后,来到美国北卡罗来纳大学攻读生物化学和生物物理学博士学位。北卡大学位于北卡罗来纳州著名的三角地,风景如画,绿地茵茵,让我有一种时光倒流仿佛当年上山下乡的感觉。当时北卡大学的大多数学自然科学的研究生,不论是外国还是美国学生,最害怕的博士资格考试就是物理化学,可谓“谈虎色变”。由于我在国内学习时,在数理化方面打下了较好的基础,所以学这门课并没有感到费多大劲儿。我记得最后的考试中,有一道很难的题目,印
At the end of 1986, after finishing short-term visiting scholar work in Sweden, I came to the University of North Carolina for a doctorate in biochemistry and biophysics. North Carolina University is located in the famous triangle of North Carolina, picturesque, green lawn, let me have a time back as if the feeling of going to the countryside. At that time most of North Carolina University students studying science, whether foreign or American students, the most afraid of the doctor qualification examination is physical chemistry. As I studied in the country, the physical and chemical aspects laid a good foundation, so I did not feel very much effort in this course. I remember the final exam, there is a very difficult topic, India