2025 年度，共有5915 家企业披露研发投入合计2.71 万亿元。其中，排名前100 企业（TOP100）的研发投入总计1.43 万亿元，较上年提升5.15%，头部效应更加明显；TOP100 企业研发占比（52.77%）也略高于上年（52.31%），资源集中度进一步提高。
而这种“消失”并非偶然，而是一场持续数年的缓慢退潮。
，推荐阅读同城约会获取更多信息
Think about the user experience difference. In traditional search, someone sees your site listed among ten results and must decide whether to click based on a title and two-line description. In AI search, someone reads an answer that includes information from your content, sees your site cited as the source, and arrives at your page already understanding its value and relevance. The qualification happens before the click, resulting in higher-quality traffic with better engagement metrics.
那么赵明的荣耀经验在AI时代是否有用呢？
Today's Wordle is a 5-letter word that starts with...Today's Wordle starts with the letter D.