社会工作介入农村留守女童性安全教育的研究
Research on the sex education of rural left-behind girls.Abstract:With the rapid development of China's market economy,the gap between urban and rural areas has gradually widened,a...
大豆根瘤固氮活性对干旱的响应
大豆根瘤固氮活性对干旱的响应摘要：在开放的试验场地中通过定量浇灌控制土壤干旱程度，对盆栽大豆进行试验测定，研究了不同干旱程度对大豆根系，重点是根瘤活性的影响。结果表明，土壤的干旱程...
以潲水油为原料的年产80000吨的生物柴油工厂设计
北京理工大学珠海学院2020届本科生毕业设计Design of a biodiesel factory with annual production of 8000 tons ofslops oilAbstractAs a kind of artificial treatment of restaurant waste c...
山西汾酒集团存货管理问题研究
本科论文inventory management;Then,according to the specific situation of Shanxi Fenjiu Co.Ltd.Andcombined with theory and practice,this passage puts forward the existing problems i...
汕头市工业经济的时间序列分析及预测
北京理工大学珠海学院2020届本科生毕业论文Time series analysis and prediction of Shantou's industrial economyAbstractThe development of industry has been a hot topic in recent years....
海南城市形象设计与研究
AbstractHainan Province,as the only provincial special economic zone in China,hasa unique natural geographical environment,so it has unique cultural andhistorical characteristics.I...
农村留守儿童问题初探
AbstractStarting from the introduction,this paper studies the problems of rural left-behindchildren,including the analysis of the status quo of rural left-behind children and the a...
希夫碱及仲胺类化合物的合成、表征及金属
希夫碱及仲胺类化合物的合成、表征及金属离子识别作用研究的选择性。预组织原则是指受体和底物分子二者在进行识别以前，受体分子根据环境预先对初结构进行组织，组织出对底物有很好的容纳能力的...
京东物流成本控制分析
Analysis of JD Logistics Cost ControlAbstractThe 21st century will be a new era of rapid development of China's e-commerce,and withthe acceleration of economic development,China's ...
跨文化视角下中美时间观中记时制度的差异分析
跨文化视角下中美时间观中记时制度的差异分析摘要近年来，中国加快了对外开放的步伐，加强了与世界的联系。来自不同背景的人们在日常生活、学习和商业事务中的交流也变得不可避免。本文以爱德华...
