科学就是从理论到实践，再从实践到理论，反反复复的过程

来源: 周游列国逍遥人生于 2014-05-09 13:20:37 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.