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地球科学前沿Vol.11 No.7, 全文下载: PDF HTML XML DOI:10.12677/AG.2021.117088, July 15 2021
不同产权性质下研发效率与企业财务绩效关系研究Research on the Relationship between R & D Efficiency and Enterprise Financial Performance under Different Property Rights
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应用数学进展Vol.11 No.2, 全文下载: PDF HTML XML DOI:10.12677/AAM.2022.112080, February 17 2022
渤海湾近二十年生态环境关键参数月平均变化规律Monthly Average Variation Pattern of Key Ecological and Environmental Parameters in Bohai Bay over the Past Two Decades
田明阳, 田振环, 冯 琦, 范玉锦, 董 娜, 邵艳琴, 王振国 科研立项经费支持
地球科学前沿Vol.14 No.10, 全文下载: PDF XML DOI:10.12677/ag.2024.1410115, October 18 2024
环境规制对企业环保投资效率的影响研究——基于环保投资规模的门槛效应分析Research on the Impact of Environmental Regulation on the Efficiency of Enterprises’ Environmental Protection Investment—Threshold Effect Analysis Based on Environmental Protection Investment Scale
郭慧敏 科研立项经费支持
低碳经济Vol.13 No.1, 全文下载: PDF HTML XML DOI:10.12677/JLCE.2024.131006, February 19 2024