首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   20234篇
  免费   98篇
  国内免费   21篇
财政金融   3031篇
工业经济   960篇
计划管理   3204篇
经济学   4437篇
综合类   861篇
运输经济   52篇
旅游经济   32篇
贸易经济   4866篇
农业经济   212篇
经济概况   2076篇
信息产业经济   44篇
邮电经济   578篇
  2024年   5篇
  2023年   15篇
  2022年   53篇
  2021年   114篇
  2020年   100篇
  2019年   69篇
  2018年   2345篇
  2017年   2122篇
  2016年   1266篇
  2015年   181篇
  2014年   207篇
  2013年   283篇
  2012年   711篇
  2011年   2283篇
  2010年   2149篇
  2009年   1732篇
  2008年   1767篇
  2007年   2113篇
  2006年   335篇
  2005年   684篇
  2004年   537篇
  2003年   632篇
  2002年   323篇
  2001年   134篇
  2000年   85篇
  1999年   15篇
  1998年   22篇
  1997年   9篇
  1996年   17篇
  1995年   4篇
  1994年   4篇
  1993年   7篇
  1992年   5篇
  1991年   2篇
  1990年   1篇
  1989年   1篇
  1988年   1篇
  1986年   13篇
  1983年   1篇
  1982年   1篇
  1981年   2篇
  1977年   2篇
  1957年   1篇
排序方式: 共有10000条查询结果,搜索用时 62 毫秒
51.
Construction kits have played a significant part in nurturing the growth and development of the minds and manipulation-based skills of children (and adults) in formal and non-formal education settings. These kits have origins rooted in the representation of the built world and now have a diversity of form and function, including technical versions with moving parts. This article examines some of the historically based ideas that lie behind the role that kits may have in terms of physical modelling. The article traces the transformation of kits from simple bricks and blocks into more complicated pieces for space-filling and achieving the transfer of forces and motion. This transformation occurred during the Victorian era when the influence of the ideas of educationalists and, perhaps rather strangely, exponents of early aviation, played major roles in determining the diversity of forms of construction kit and modelled possibilities that are now to be seen in classrooms and homes. The article ends with a review of some of the lessons from the past and present that will need to be considered in relation to concrete modelling in schools for the future. This revised version was published online in July 2006 with corrections to the Cover Date.  相似文献   
52.
53.
In this article the impact of technology education, as a new learning area (subject) in the curriculum, on in-service teacher education in South Africa is described in order to ascertain the extent of the impact. The research on which this article is based draws on a variety of experiences and observations in the field at grassroots level (in particular an outreach project in rural communities). The envisaged impact of technology education on South African schools, communities, teacher educators and teachers, the range of in-service teacher education that is required, and the impacts in urban and rural areas are discussed. Finally a number of concluding remarks are made about the extent of the impact of the inclusion of technology education in the new National Curriculum Statement and whether the situation has changed since the implementation of a pilot technology education project in 1998. This revised version was published online in July 2006 with corrections to the Cover Date.  相似文献   
54.
55.
56.
阐述了中国“入世”后,档案工作在非国有企业的生存发展中所起的基础性作用和保护企业知识产权的重要性,提出了非国有企业档案工作改革的新思路。  相似文献   
57.
教育产权概念解析   总被引:1,自引:0,他引:1  
文章在分析教育产权客观存在的基础上,对教育产权的含义和内容进行了分析。文章认为,教育产权是参与教育活动的组织和个人围绕教育财产而形成的一组权利关系。从内容上看,教育产权是包括对教育财产的狭义所有权或归属权、占有权、使用权、收益权,以及处分权在内的权利集合。  相似文献   
58.
That survey research is error prone is not a new idea and different varieties of non-sampling error have been investigated in the literature as well as consideration being given in many statistics textbooks to the issue of sampling error. The paper here considers research upon corporate environmental reporting. It compares information provided by corporate environmental reports with information that survey respondents claim their organization’s environmental report contains. This enables the accuracy of the claims to be assessed. Consideration is given to two different industries the Water industry and the Energy industry. Errors due to inaccurate reporting by survey respondents are shown to be relatively infrequent and respondents appear just about as likely to claim they report information that they do not, in fact, report as to fail to indicate that they report information that is, in fact, actually reported.  相似文献   
59.
城市旧住宅小区管理模式研究   总被引:1,自引:0,他引:1  
城市旧住宅小区管理模式有物业管理模式、社区管理模式和单位自管模式之分。旧小区管理模式改革和创新是建立政府行政管理与居民(业主)自治管理相结合、社区管理与物业管理相结合的混合型管理模式,其实现途径是加强政府对旧小区管理的领导和支持,充分发挥小区自治组织的作用,积极推行物业管理模式,更新思想观念,提高物业管理服务水平,建立物业管理与社区管理相结合的运作机制,加强法制建理服务设。  相似文献   
60.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号