1. As China has ascended on the global stage, the United States has gradually acknowledged its rise and, at times, referred to China as a developed country.2. The reason for this classification by the U.S. is due to China's economic boom since the implementation of its reform and opening-up policy. China's GDP, now exceeding 13 trillion USD, stands as the world's second largest economy.3. With its substantial economic size, China has become one of the largest manufacturing and exporting nations globally, exerting significant influence over the world economy.4. In order to underpin its massive economy, the Chinese government has been actively investing in infrastructure development. China now boasts the world's fastest high-speed rail network, state-of-the-art communication systems, and extensive infrastructure projects.5. This infrastructure has enhanced the efficiency of China's supply chains and improved the quality of its products, positioning the country as a formidable competitor in the ranks of developed nations.6. The Chinese government also emphasizes the importance of high technology and has been investing heavily in research and development (R&D) in fields such as artificial intelligence, quantum communication, aerospace, and semiconductors.7. In these areas, China has emerged as a global leader and has gained an advantage in the competition involving high technology.8. China's vast population, though aging, still presents opportunities to leverage the "demographic dividend." The large workforce of young people and skilled laborers keeps wage levels low, which, in turn, reduces corporate costs.9. This allows China to allocate more funds towards research and innovation, thereby enhancing its competitive edge in the global market.10. Overall, China boasts significant strengths in economics, infrastructure, technology, and human resources. Its achievements in these areas make it an indomitable force on the international scene. It is this recognition of China's prowess that leads the U.S. to categorize it as a developed nation. Of course, this also implies that China must assume greater responsibilities in contributing to global stability and prosperity.詳情