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社会化环境监测机构的质量管理方法研究Research on Quality Management Methods of Socialized Environmental Monitoring Organizations
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环境保护前沿Vol.13 No.3, 全文下载: PDF HTML XML DOI:10.12677/AEP.2023.133075, June 21 2023
精准出版诉求下教辅图书数字出版平台构建研究Research on the Construction of Digital Publishing Platform for Teaching Auxiliary Books under the Demand of Precise Publishing
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现代市场营销Vol.10 No.2, 全文下载: PDF HTML XML DOI:10.12677/MOM.2020.102006, April 7 2020
北京市全社会用电量的研究与短期预测Research and Short-Term Prediction of the Total Social Electricity Consumption in Beijing
付 军, 李俊刚 科研立项经费支持
建模与仿真Vol.11 No.5, 全文下载: PDF HTML XML DOI:10.12677/MOS.2022.115129, September 28 2022
城市知识分子空巢老人的生活状况调查研究—以北京市海淀区为例Investigation on Life Situation of the Intellectual Empty-Nesters in Urban Areas—A Case Study of Haidian District, Beijing
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老龄化研究Vol.1 No.3, 全文下载: PDF HTML DOI:10.12677/AR.2014.13008, September 25 2014