全文获取类型
收费全文 | 24254篇 |
免费 | 356篇 |
国内免费 | 245篇 |
专业分类
教育 | 16224篇 |
科学研究 | 2770篇 |
各国文化 | 190篇 |
体育 | 2105篇 |
综合类 | 573篇 |
文化理论 | 154篇 |
信息传播 | 2839篇 |
出版年
2022年 | 162篇 |
2021年 | 303篇 |
2020年 | 391篇 |
2019年 | 400篇 |
2018年 | 402篇 |
2017年 | 523篇 |
2016年 | 473篇 |
2015年 | 576篇 |
2014年 | 870篇 |
2013年 | 3293篇 |
2012年 | 1029篇 |
2011年 | 1207篇 |
2010年 | 1102篇 |
2009年 | 1014篇 |
2008年 | 1039篇 |
2007年 | 994篇 |
2006年 | 975篇 |
2005年 | 820篇 |
2004年 | 830篇 |
2003年 | 661篇 |
2002年 | 660篇 |
2001年 | 451篇 |
2000年 | 388篇 |
1999年 | 285篇 |
1998年 | 151篇 |
1997年 | 161篇 |
1996年 | 184篇 |
1995年 | 153篇 |
1994年 | 147篇 |
1993年 | 140篇 |
1992年 | 193篇 |
1991年 | 189篇 |
1990年 | 169篇 |
1989年 | 226篇 |
1988年 | 182篇 |
1987年 | 210篇 |
1986年 | 181篇 |
1985年 | 235篇 |
1984年 | 197篇 |
1983年 | 177篇 |
1982年 | 152篇 |
1981年 | 134篇 |
1980年 | 112篇 |
1979年 | 177篇 |
1978年 | 138篇 |
1977年 | 122篇 |
1976年 | 139篇 |
1975年 | 107篇 |
1974年 | 118篇 |
1971年 | 107篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
941.
为了推动北京高校图书馆群众体育活动的开展,北京高校图工委从1988年开始举办田径运动会,每三年轮流举办一次。4月21日上午,沐浴着和煦的春风,首都高校图书馆第七届田径运动会在北京邮电大学体育场隆重举行。来自清华大学、北京师范大学、北京理工大学等35所高校图书馆的代表队1500多人参加了此次盛会,800多名运动员参加了42个比赛项目的角逐。上午8:40,国旗方阵、鲜花方阵、红旗方阵、裁判员代表队顺序入场。运动员方队迈着整齐的步伐依次走过主席台。不同的方阵身穿不同颜色的服装,高举不同的旗帜、横幅,喊着不同的口号,展现着意气风发、… 相似文献
942.
943.
Robert E. Baensch 《Publishing Research Quarterly》2007,23(4):262-269
The essential demographic data and related information for India is provided specifically for the publishing industry. The
focus has been placed on the economics, education and computer industry in relation to the complex cultural factors of different
languages and religions. The role of India in relation to the other three BRIC countries or Brazil, China and Russia is explored. 相似文献
944.
945.
Information asymmetry and information sharing 总被引:1,自引:0,他引:1
Gavin Clarkson Trond E. Jacobsen Archer L. Batcheller 《Government Information Quarterly》2007,24(4):827
Although much digital divide research focuses on access to technology, another cause of the divide is the lack of information awareness that we call information asymmetry. Information asymmetry often stems from inadequate information sharing and can result in negative consequences for both the information poor and the information rich. Information asymmetry has been insufficiently studied as a possible cause of underdevelopment and inequality. In response, we develop a typology to classify information asymmetry into two categories, horizontal and vertical, and then identify those information sharing practices that cause the imbalance. To illustrate the negative consequences of information asymmetry and the potential benefits of information sharing, we discuss two examples from the experiences of modern American Indian tribes. First, Indian tribes face horizontal information asymmetry when they attempt to access the capital markets, and second, they face vertical information asymmetry in terms of law enforcement data sharing. This article also describes our ongoing examination of horizontal information sharing among tribes and vertical information sharing between tribes and others sovereigns in the American polity as possible solutions to the problems created by information asymmetry. These strategic responses are embodied in two information systems, the Tribal Financial Information Clearinghouse and an Intergovernmental Tracking System for sharing law enforcement data. We conclude with a discussion of how our typology can be more generally applied to other instances of information asymmetry. 相似文献
946.
Hishinuma ES 《Journal of learning disabilities》1999,32(4):362-371
A recent landmark settlement between the National Collegiate Athletic Association (NCAA) and the U.S. Department of Justice addressed many crucial issues relating to the eligibility of high school students with learning disabilities (LD) and their participation in college freshman athletics. Although the changes agreed upon in the consent decree should have wide-ranging ramifications generally in favor of students with LD, the more subjective nature of these changes opens the door for inevitable inconsistencies, biases, and possible abuses. In addition, larger issues remain unresolved, including (a) the NCAA's denial that is covered by the Americans with Disabilities Act, (b) the inconclusive status of whether college athletics is a major life activity, (c) the NCAA acting as a de facto national school board without rigorous research for setting policy on an informed basis, and (d) the lack of serious initiative on the part of the NCAA to take on a more supportive role in educational reform. 相似文献
947.
948.
Sallis JF Calfas KJ Nichols JF Sarkin JA Johnson MF Caparosa S Thompson S Alcaraz JE 《Research quarterly for exercise and sport》1999,70(1):1-10
Project GRAD (Graduate Ready for Activity Daily) evaluates a university course to promote physical activity. In a randomized study, 338 university seniors participated in either an intervention or control course for academic credit, and posttest data were collected on 321. The control course was knowledge-oriented. The intervention course taught behavior change skills in weekly lectures and peer-led labs. Physical activity was assessed with 7-Day Physical Activity Recall interviews. The intervention had no significant effects on men. Among women, the intervention increased total physical activity during leisure, strengthening exercises, and flexibility exercise. This university course had the intended effects of promoting healthful patterns of physical activity among women, but no effects were observed on men, who were more active than women at baseline. 相似文献
949.
950.
我国学术期刊稿件的同行评审伴随着学术出版业的迅速发展和学术期刊的国际化进程而逐步发展起来。本文概要地梳理了近年来中国学术界对同行评审的有效性以及同行评审专家的职能定位等问题的研究,分析和探讨了中国学术期刊同行评审实践中存在的几个主要问题。 相似文献