全文获取类型
收费全文 | 8751篇 |
免费 | 95篇 |
国内免费 | 12篇 |
专业分类
教育 | 6492篇 |
科学研究 | 623篇 |
各国文化 | 123篇 |
体育 | 614篇 |
综合类 | 5篇 |
文化理论 | 109篇 |
信息传播 | 892篇 |
出版年
2022年 | 44篇 |
2021年 | 72篇 |
2020年 | 90篇 |
2019年 | 176篇 |
2018年 | 229篇 |
2017年 | 240篇 |
2016年 | 242篇 |
2015年 | 152篇 |
2014年 | 179篇 |
2013年 | 2020篇 |
2012年 | 190篇 |
2011年 | 196篇 |
2010年 | 207篇 |
2009年 | 208篇 |
2008年 | 217篇 |
2007年 | 207篇 |
2006年 | 183篇 |
2005年 | 149篇 |
2004年 | 155篇 |
2003年 | 134篇 |
2002年 | 150篇 |
2001年 | 121篇 |
2000年 | 174篇 |
1999年 | 126篇 |
1998年 | 133篇 |
1997年 | 109篇 |
1996年 | 124篇 |
1995年 | 119篇 |
1994年 | 129篇 |
1993年 | 121篇 |
1992年 | 122篇 |
1991年 | 128篇 |
1990年 | 97篇 |
1989年 | 94篇 |
1988年 | 89篇 |
1987年 | 100篇 |
1986年 | 93篇 |
1985年 | 106篇 |
1984年 | 90篇 |
1983年 | 83篇 |
1982年 | 94篇 |
1981年 | 72篇 |
1980年 | 82篇 |
1979年 | 79篇 |
1978年 | 71篇 |
1977年 | 73篇 |
1976年 | 67篇 |
1975年 | 60篇 |
1974年 | 52篇 |
1971年 | 39篇 |
排序方式: 共有8858条查询结果,搜索用时 0 毫秒
11.
12.
13.
14.
Peter Davison 《Learned Publishing》2003,16(4):243-247
The Copyright Licensing and Administration Society of Singapore was established in 1999. It is now profitable and commercially significant, perhaps uniquely so in Asia. Critical factors in its growth have included a statutory (non‐voluntary) photocopying licence provision for educational institutions in the Copyright Act; and widespread support from the local and international communities of rightsholders. Tentative consensus has been established with educators over a fair level of remuneration for copying. Further work needs to be done to extend or amend the current model for electronic copying, for the private sector and for other countries in the region. 相似文献
15.
16.
17.
During the rewriting of its program in the early 1980s, theRassemblement pour la République (RPR) carried out anumber of opinion surveys. The person in charge of this wasnot a member of the inner leadership circle; he warned the partyleader, Jacques Chirac, that themes forming a coherent liberalprogram for the transformation of the relationship between citizens,state, and the economy, were not popular with public opinion,which remained attached to progressive taxation and a comprehensivesocial welfare system. The party leadership ignored these warnings.Rather than attempting to align their policies with voter aspirations,their principal use of political communications techniques aimedat improving their leader's image. The person in charge of thiswork was a stranger to politics whose understanding of the waycultural or political attitudes are changed led him to interpretvery fatalistically the chances of influencing election outcomesby communications techniques. His methods were treated withfrank skepticism by party communications colleagues, his client'spersonality was particularly unamenable to his efforts, andhis one successful initiativethe rejuvenation of theexecutive committeewas operated at the cost of a rowin the party. In the case of the RPR, opinion research seemsto have played no role at all in an important party policy review,the causes of which should be sought elsewhere. 相似文献
18.
William E. Becker 《Economics of Education Review》1996,15(4):445-446
19.
20.
From 1919 to 1951, Alan Gregg and his mentor, Richard Pearce, directed the Medical Education and Medical SciencesDivisions of the Rockefeller Foundation. Although they oversaw the expenditure of millions of dollars, today they are forgotten. Yet, the system that Gregg administered became the model for the funding of biomedical research after the Second World War. This paper draws on the records of the Rockefeller Foundation to assess Gregg and his impact on biomedicine and philanthropy. 相似文献