北大以前的校長還是不錯的

來源: wadcChinese 於 2013-06-16 11:37:46 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

叫丁石孫，一個數論專家。六四後被換下，後來北大一直在被行政拘留

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