送交者: 匆匆过客 于 2006-3-16, 13:14:33:
回答: THis is a generalized statement with no substance. 由 skipper3 于 2006-3-16, 13:03:49:
how did you arrive at 20-40% of students at PKU are from low-income family? How did you define low-income?
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