“50年前,我在天安门广场参加开国大典。50年后,我又在天安门现场观礼。短短50年,中国从东亚病夫变成红色巨龙。壮国威,震人心,令人难以平静。”中国科学院院士、北京大学教授、北大纳米科学与技术研究中心主任吴全德激动地说:“社会的发展靠科技 “I attended the founding ceremony 50 years ago in Tiananmen Square and after 50 years I attended the ceremony in Tiananmen Square. In just 50 years China became a red dragon from a sick man in East Asia. ”Chinese Academy of Sciences, Peking University professor, Peking University Nano Science and Technology Research Center Director Wu Quande said excitedly:" The development of society depends on science and technology