樓主正確。添一實例佐證。83年曾參加“東三”五年。老同誌講，“東二”從國家立項到成功上天僅三年！“東三”用了十年！！

來源: 春秋以來於 2014-09-18 08:33:15 [舊帖] [給我悄悄話] 本文已被閱讀：次

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