搜索结果: 1-1 共查到“经济学 increasingly challenged”相关记录1条 . 查询时间(0.084 秒)
U.S. science and technology leadership increasingly challenged by advances in Asia
U.S. science and technology increasingly challenged Asia
2016/2/22
According to the latest federal data, the U.S. science and engineering (S&E) enterprise still leads the world. The United States invests the most in research and development (R&D), produces the most a...