全文获取类型
收费全文 | 24231篇 |
免费 | 329篇 |
国内免费 | 61篇 |
专业分类
教育 | 17436篇 |
科学研究 | 2195篇 |
各国文化 | 216篇 |
体育 | 1725篇 |
综合类 | 45篇 |
文化理论 | 129篇 |
信息传播 | 2875篇 |
出版年
2021年 | 269篇 |
2020年 | 351篇 |
2019年 | 507篇 |
2018年 | 760篇 |
2017年 | 774篇 |
2016年 | 718篇 |
2015年 | 466篇 |
2014年 | 685篇 |
2013年 | 4594篇 |
2012年 | 631篇 |
2011年 | 672篇 |
2010年 | 576篇 |
2009年 | 556篇 |
2008年 | 604篇 |
2007年 | 557篇 |
2006年 | 557篇 |
2005年 | 501篇 |
2004年 | 406篇 |
2003年 | 363篇 |
2002年 | 347篇 |
2001年 | 523篇 |
2000年 | 449篇 |
1999年 | 398篇 |
1998年 | 239篇 |
1997年 | 273篇 |
1996年 | 262篇 |
1995年 | 207篇 |
1994年 | 238篇 |
1993年 | 200篇 |
1992年 | 350篇 |
1991年 | 312篇 |
1990年 | 330篇 |
1989年 | 343篇 |
1988年 | 286篇 |
1987年 | 269篇 |
1986年 | 283篇 |
1985年 | 276篇 |
1984年 | 254篇 |
1983年 | 249篇 |
1982年 | 189篇 |
1981年 | 202篇 |
1980年 | 186篇 |
1979年 | 283篇 |
1978年 | 216篇 |
1977年 | 170篇 |
1976年 | 168篇 |
1975年 | 156篇 |
1974年 | 157篇 |
1973年 | 154篇 |
1971年 | 152篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
11.
12.
13.
How has Item Response Theory helped solve problems in the development and use of computer-adaptive tests? Do we need to balance item content with computer-adaptive tests? Could we use IRT to evaluate unusual responses to computer-delivered tests? 相似文献
14.
15.
Thomas L. Bonn 《Publishing Research Quarterly》1994,10(1):55-65
The role of the literary agent and the reception granted agents by publishers have changed markedly over the course of the
twentieth century. Henry Holt’s views of agents, written in the first decade of the century, help define the status and activities
of agents at that time. These are compared with the role of agents today, using archival sources, the book trade literature,
and interviews.
Thomas L. Bonn, review editor of this journal, is a librarian, Library at State University College at Cortland. He is the
author ofUnder Cover: An Illustrated History of American Mass Market Paperbacks andHeavy Traffic and High Culture: The New American Library as Literary Gatekeeper. He is working on a study of American literary agents. 相似文献
16.
17.
Lawrence K. Ametepee Morgan Chitiyo Susan Abu 《British Journal of Special Education》2009,36(3):155-161
The problem of student indiscipline is an issue of concern for teachers and parents around the world. Teachers need to maintain student discipline and for them to do so it is important that they also understand the nature of discipline problems. This study, by Lawrence Kofi Ametepee, who is studying for a PhD in special education, Morgan Chitiyo, board certified behaviour analyst and Assistant Professor of Special Education, both at Southern Illinois University, Carbondale, USA, and Susan Abu, who is currently a graduate student in the Department of Women's Studies at Texas Women's University, was designed to examine the nature and perceived causes of student indiscipline in Zimbabwean secondary schools. The authors anticipate that such an examination will promote teachers’, parents’ and policy makers’ understanding of student indiscipline, which will, in turn, enhance disciplinary policies and practices, making schools safer for all students and more effective in their role as educational and socialising agents. 相似文献
18.
19.
20.
L A Colaianni 《Bulletin of the Medical Library Association》1992,80(1):1-8
The 1991 Janet Doe lecturer describes the vision held by the founders of the Medical Library Association of medical information being readily accessible to health professionals no matter how far they were located from major medical centers, and traces the pursuit of this vision to current outreach activities. 相似文献