I was given the most valuable opportunity of participating in ICPSR program of University of Michigan, which can be regarded as the turning point in my life. I was deeply attracted by the free style of study in the United States, which made me decide to study in the United States. In the two months, I have learned to use SAS statistical software to analyze data, and initially mastered to establish sociology model for analyzing the social problems by utilizing NETLOGO.
建议楼主还是通过专业服务来解决这个问题吧,毕竟PS是留学申请中最重要的一份材料了。