二十一世纪是生命科学的世纪 ,是分子生物技术和基因工程日趋成熟并向纵深发展的世纪 ,是“头脑启动”的世纪 ,是我国政府继续贯彻“提高人口素质 ,控制人口数量”这一基本国策的世纪 ;是“优生、优育、优教三优工程”仍将被热点瞩目的世纪 ,也更是为生殖健康、生殖控制等重大 The 21st century is the century of life science. It is a century where molecular biotechnology and genetic engineering have matured and developed in depth. It is a century that “starts with the mind.” It is the time when our government continues to implement the principle of “improving population quality and controlling the population.” The century of basic national policy is the century that “the eugenics, the excellent education and the excellent education will be the three excellent projects” will still be the focus of attention, and even more important for reproductive health and reproductive control