一个富有竞争性和挑战性的２１世纪已经到来。新世纪是科技竞争，特别是人才的竞争，将成为世界各国竞争的焦点。因此，提高全民族的科学文化素质已成为我们适应世界潮流、迎接新世纪挑战的关键，也是实现中华民族全面振兴的关键。２１世纪社会环境将发生较大变化。社会环境的 A competitive and challenging 21st century has arrived. The new century is the competition of science and technology, especially the competition of talents, and will become the focus of competition in all countries in the world. Therefore, raising the scientific and cultural qualities of the entire nation has become the key to our adapting to the world trend and meeting the challenges of the new century. It is also the key to realizing the all-round rejuvenation of the Chinese nation. In the 21st century, the social environment will change greatly. Social environment