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金牛网金牛版安卓版|北美联盟杯32强赛迈阿密国际3:1奥兰多城,梅西梅开二度一让点,如何评价梅西的表现?是否实现降维打击?
2026-07-30 13:05:32来源:新华社编辑:浦海蕊

  从研发投入总量看,2022年,中国研发经费(R&D)投入规模首次突破3万亿元大关,仅次于美国,位居世界第二。其中,基础研究经费支出为1951亿元,占全部研发经费的比重为6.32%,相较十年前的4.8%,已是一个很大的提升,但仍远低于主要发达国家15%~25%的平均水平。王贻芳认为,中国基础研究的问题,一方面与总体的投入比例不足有关,更关键的症结在于,6.32%的经费也没有得到相对合理的分配,造成经费的使用效益不高。

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