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[期刊论文] 作者：Ｗｅｎｄｙ Ｋｏｐｐ,
来源：中学生英语·高一版 年份：2006
In 1989， Wendy Kopp was a college student， searching for a topic for her senior thesis. What she found was a calling. As a public policy major at Princeton University， Kopp couldn’t help noticing th...
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