全文获取类型
| 收费全文 | 19991篇 |
| 免费 | 97篇 |
| 国内免费 | 7篇 |
专业分类
| 教育 | 15198篇 |
| 科学研究 | 1901篇 |
| 各国文化 | 147篇 |
| 体育 | 848篇 |
| 综合类 | 5篇 |
| 文化理论 | 476篇 |
| 信息传播 | 1520篇 |
出版年
| 2021年 | 56篇 |
| 2020年 | 86篇 |
| 2019年 | 157篇 |
| 2018年 | 2337篇 |
| 2017年 | 2279篇 |
| 2016年 | 1752篇 |
| 2015年 | 276篇 |
| 2014年 | 326篇 |
| 2013年 | 2114篇 |
| 2012年 | 379篇 |
| 2011年 | 871篇 |
| 2010年 | 989篇 |
| 2009年 | 580篇 |
| 2008年 | 824篇 |
| 2007年 | 1322篇 |
| 2006年 | 252篇 |
| 2005年 | 574篇 |
| 2004年 | 611篇 |
| 2003年 | 506篇 |
| 2002年 | 274篇 |
| 2001年 | 130篇 |
| 2000年 | 145篇 |
| 1999年 | 133篇 |
| 1998年 | 113篇 |
| 1997年 | 130篇 |
| 1996年 | 118篇 |
| 1995年 | 147篇 |
| 1994年 | 121篇 |
| 1993年 | 107篇 |
| 1992年 | 114篇 |
| 1991年 | 112篇 |
| 1990年 | 102篇 |
| 1989年 | 107篇 |
| 1988年 | 98篇 |
| 1987年 | 96篇 |
| 1986年 | 88篇 |
| 1985年 | 99篇 |
| 1984年 | 105篇 |
| 1983年 | 99篇 |
| 1982年 | 109篇 |
| 1981年 | 83篇 |
| 1980年 | 61篇 |
| 1979年 | 74篇 |
| 1978年 | 77篇 |
| 1977年 | 85篇 |
| 1976年 | 68篇 |
| 1975年 | 56篇 |
| 1974年 | 59篇 |
| 1973年 | 60篇 |
| 1971年 | 44篇 |
排序方式： 共有10000条查询结果，搜索用时 31 毫秒
21.
Ohne Zusammenfassung 相似文献
22.
23.
24.
Kristjana Kristinsdóttir 《Archival Science》2003,3(2):199-204
The article sets off with a brief summary of the history of appraisal and disposal of records as processed at the National Archives of Iceland (NAI) since its establishment in 1882 to present times. Rules on appraisal and disposal of records introduced in 1900, 1911, and 1916 were ignored and all records were kept. Status quo remained until 1985 when a new National Archives Act was passed. The appraisal and disposal process adopted then is described and explained. It included the publication of instructions on records management as well as forms relating to records management. The influence of acts of law on the appraisal and disposal process is explained. Finally the experience with the arrangement of organised appraisal in Iceland is described. 相似文献
25.
This paper explores some of the problems arising when Continuous Assessment (CA) is grafted onto established pedagogic practices. It focuses on three issues: teachers' restricted understandings of assessment, teachers' emphasis on criteria that demonstrate concern with social control, and some of the problems connected with peer assessment. Two vignettes derived from fieldwork associated with a project to improve the quality of primary education are used to raise the issues. We argue that the development of desired practices is hampered above all by tacit values in tension with those underpinning the new curriculum. These values, together with the complexity of curriculum design, create serious problems of manageability and interpretation, which can only be addressed through detailed interactive in-service training, aimed at reconceptualising teachers' notions of assessment. 相似文献
26.
John R. Garrett 《Publishing Research Quarterly》1991,7(4):13-20
This article focuses on several conceptual and structural issues that are central to copyright compliance in the electronic
age. It presumes the development of a national electronic network for storing, organizing, accessing, managing, and charging
for information. The article first discusses the implications of constructing a comprehensive electronic “highway,” or Digital
Library System (DLS), which would link information to the widespread community of users. It then presents the ramifications
of a highly decentralized set of subsystems serving rights holders and users, linked by protocols established by the DLS.
A discussion of the implications of digital interchangeability for copyright follows. The article ends with an analysis of
alternatives to existing intellectual property rights conveyance systems, and concludes that current ownership structures,
and systems for conveying rights and royalties, will remain the foundation for copyright in the electronic world.
This article appeared in a slightly different form in theProceedings of the Twelfth National Online Meeting—1991, and is published here with the permission of Learned Information, Inc., Medford, N.J. 相似文献
27.
John M. Budd 《Publishing Research Quarterly》1991,7(2):27-37
In recent years university presses have undergone some significant changes, such as expansion of their scope to include materials
that may have appeal beyond the scholarly market. This article investigates, through the use of a survey of university libraries,
the acquisition of university press products by libraries. In general, recent years have been changes in the relationship
between university presses and libraries that have resulted in fewer items being purchased by the libraries. 相似文献
28.
29.
30.