文革前清華曾是6年製，北京礦業學院和石油學院文革後沒有被允許返京，有說是因為打死了部長和反餘秋裏

來源: 公鯊於 2021-06-20 19:07:55 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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