全文获取类型
收费全文 | 21978篇 |
免费 | 144篇 |
国内免费 | 13篇 |
专业分类
财政金融 | 3273篇 |
工业经济 | 1098篇 |
计划管理 | 3578篇 |
经济学 | 4898篇 |
综合类 | 1023篇 |
运输经济 | 43篇 |
旅游经济 | 30篇 |
贸易经济 | 5089篇 |
农业经济 | 360篇 |
经济概况 | 2112篇 |
信息产业经济 | 48篇 |
邮电经济 | 583篇 |
出版年
2024年 | 11篇 |
2023年 | 46篇 |
2022年 | 91篇 |
2021年 | 109篇 |
2020年 | 144篇 |
2019年 | 109篇 |
2018年 | 2372篇 |
2017年 | 2183篇 |
2016年 | 1307篇 |
2015年 | 217篇 |
2014年 | 274篇 |
2013年 | 316篇 |
2012年 | 821篇 |
2011年 | 2556篇 |
2010年 | 2360篇 |
2009年 | 1910篇 |
2008年 | 1885篇 |
2007年 | 2250篇 |
2006年 | 458篇 |
2005年 | 778篇 |
2004年 | 594篇 |
2003年 | 659篇 |
2002年 | 332篇 |
2001年 | 142篇 |
2000年 | 92篇 |
1999年 | 19篇 |
1998年 | 28篇 |
1997年 | 10篇 |
1996年 | 21篇 |
1995年 | 4篇 |
1994年 | 2篇 |
1993年 | 4篇 |
1992年 | 4篇 |
1991年 | 2篇 |
1989年 | 4篇 |
1988年 | 1篇 |
1986年 | 13篇 |
1984年 | 7篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
51.
Eric F. Parkinson 《International Journal of Technology and Design Education》2004,14(3):219-243
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.
Calvyn Potgieter 《International Journal of Technology and Design Education》2004,14(3):205-218
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.
我国保税区的发展已进入战略调整与体制转型的关键时期,无论是区域扩张、港区联动,还是企业运营,都对其金融环境的完善提出了新的要求.为此,应在对保税区金融服务进行评价的基础上,从软环境和硬环境两个方面,探讨转型过程中保税区金融环境重构的战略措施. 相似文献
57.
主持人目前,电子标签已广泛应用于烟草、医药、化工、服装、图书、机械、电子等行业的拣选和配送作业,并且由于其无与伦比的便利性,应用范围在不断扩大,其用途逐渐突破以前单纯的拣选和配送业务,扩展到分类、标识、导引、控制等方面。但是,还有很多企业对电子标签拣货系统的特点、类 相似文献
58.
成功体育在学校体育教学中的应用 总被引:2,自引:0,他引:2
要改变一部分学生在以往体育学习和锻炼中屡遭落后和失败的命运,让学生不断产生成功的情感体验,从而对体育养成习惯、积极参与.据此,本文着力从培养学生的体育兴趣、体验成功的机会、培养学生的自信心以及体育课的考核与评价的改革这四个方面来探讨成功体育在体育教学中的应用. 相似文献
59.
Stephanie Stray 《Quality and Quantity》2009,43(1):161-171
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
60.
近年来,国有商业银行连续发生了一些重大案件。这些案件多发生在国有商业银行的基层分支机构.案件的当事人多是基层银行所处管理层级别较高的管理者,而且有些案件发生的隐患长期得不到发现和消除。本文从博弈论和信息经济学的角度,分析了为什么随着银行员工所处管理层级的提高银行员工的偷懒行为或道德风险行为越来越难发现,并建议使用基层商业银行内部监督的两个工具,加强商业银行内部监督。 相似文献