20年前，邓小平同志在全国科学大会开幕式上发表了重要讲话。他的这一讲话，扫清了笼罩在我国科技战线上的乌云，澄清了被“四人帮”极左思潮搞的混乱不堪的思想认识，吹响了向科学技术进军的号角。他的这个讲话，是以“科学技术是第一生产力”和“知识分子是工人阶级的一部分 Twenty years ago, Comrade Deng Xiaoping made an important speech at the opening ceremony of the National Science Conference. His speech cleared away the dark clouds shrouded in the science and technology front of our country, clarified the chaotic ideological conviction pursued by the ultra-leftist trend of the “gang of four,” and sounded the horn of marching toward science and technology. His speech is based on “science and technology are primary productive forces” and "intellectuals are part of the working class