全文获取类型
收费全文 | 6524篇 |
免费 | 92篇 |
国内免费 | 14篇 |
专业分类
教育 | 4737篇 |
科学研究 | 472篇 |
各国文化 | 119篇 |
体育 | 547篇 |
综合类 | 2篇 |
文化理论 | 62篇 |
信息传播 | 691篇 |
出版年
2021年 | 53篇 |
2020年 | 96篇 |
2019年 | 163篇 |
2018年 | 196篇 |
2017年 | 219篇 |
2016年 | 222篇 |
2015年 | 146篇 |
2014年 | 168篇 |
2013年 | 1592篇 |
2012年 | 133篇 |
2011年 | 156篇 |
2010年 | 133篇 |
2009年 | 147篇 |
2008年 | 165篇 |
2007年 | 131篇 |
2006年 | 124篇 |
2005年 | 142篇 |
2004年 | 131篇 |
2003年 | 119篇 |
2002年 | 120篇 |
2001年 | 88篇 |
2000年 | 91篇 |
1999年 | 92篇 |
1998年 | 56篇 |
1997年 | 69篇 |
1996年 | 66篇 |
1995年 | 64篇 |
1994年 | 64篇 |
1993年 | 63篇 |
1992年 | 70篇 |
1991年 | 84篇 |
1990年 | 69篇 |
1989年 | 63篇 |
1988年 | 56篇 |
1987年 | 65篇 |
1986年 | 56篇 |
1985年 | 69篇 |
1984年 | 65篇 |
1983年 | 67篇 |
1982年 | 56篇 |
1981年 | 56篇 |
1980年 | 39篇 |
1979年 | 56篇 |
1978年 | 62篇 |
1977年 | 56篇 |
1976年 | 42篇 |
1975年 | 43篇 |
1973年 | 40篇 |
1971年 | 30篇 |
1968年 | 31篇 |
排序方式: 共有6630条查询结果,搜索用时 15 毫秒
31.
32.
33.
Paul W. Grimes Joyce E. Nielsen James F. Niss 《The American journal of distance education》2013,27(2):36-43
Abstract Correspondence study represents the first and most persistent distance education format in American universities. Later called independent study, it enabled universities to disseminate instruction far beyond their campuses. Yet, national‐level leadership provided by the National University Continuing Education Association (NUEA) and its divisions has been relatively restrained. In contrast, leadership in the private correspondence school sector has been assertive, and sometimes even aggressive. The NUEA and its members shunned this approach, choosing instead to lead by persuasion and example. The NUEA developed standards of practice concerned primarily with replicating on‐campus teaching styles and values, rather than the promotion of distance education. With the abolition of its division structure, the NUEA's successor, the University Continuing Education Association (UCEA), has opted out of a leadership role in independent study. This paper concludes that the NUEA's initial attempt at leadership in distance education— while reasoned and principled—contained flaws that made failure inevitable. 相似文献
34.
35.
36.
37.
38.
39.
Davis A. Scott 《Communication Studies》2013,64(4):263-269
In 1884, a street corner harangue by the local precinct captain precipitated a torch light parade; the coming of a presidential aspirant caused the whole countryside to erupt. This article presents some of the color, bustle, hysteria, and rhetoric which accompanied James G. Blaine's week‐long but fruitless effort to capture the electoral votes of a crucial state. 相似文献
40.
The British Journal of Educational Technology (BJET) uses a novel system for obtaining referees by e‐mailing the abstracts of submissions to a panel of over 250 referees and allowing these individuals to choose which papers they would like to review. An analysis of 13 experienced referees showed that, of 473 reviews assessed, these referees were slightly more lenient than the editor and that electronic records provide useful data that can be mined in interesting ways. 相似文献