2022年我国研发经费投入突破3万亿元（新数据 新看点）

七印授权

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2023-01-23 03:32:48

article

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zh-CN

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13998406

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yuanben_63cdffe03415e6.68972767

原本认证

https://www.yuanben.io/article/e6920781-939e-4a0e-9d80-c738f89b5356

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