世界科学技术的飞速发展，强烈影响着世界经济、政治格局的演变。本世纪后半叶，科学新发现和科技新发明的数量，已超过过去几个世纪的总和。与发达国家相比，我国科技水平原来就有较大差距，若不奋起直追，差距会越来越大。那么，与美日欧相比，我国的科技实力究竟如何？... The rapid development of science and technology in the world has strongly influenced the evolution of the world economy and politics. In the second half of this century, the number of new discoveries in science and new inventions of science and technology has surpassed the sum of the past few centuries. Compared with developed countries, the original level of our country's science and technology has a big gap. If we do not catch up, the gap will grow bigger and bigger. So, compared with the United States, Japan and Europe, our country's scientific and technological strength how? ...