首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   125449篇
  免费   1650篇
  国内免费   241篇
教育   86961篇
科学研究   13594篇
各国文化   2007篇
体育   9744篇
综合类   194篇
文化理论   1094篇
信息传播   13746篇
  2021年   964篇
  2020年   1676篇
  2019年   2603篇
  2018年   3171篇
  2017年   3442篇
  2016年   3475篇
  2015年   2337篇
  2014年   3210篇
  2013年   27458篇
  2012年   2451篇
  2011年   2882篇
  2010年   2415篇
  2009年   2656篇
  2008年   2485篇
  2007年   2245篇
  2006年   2459篇
  2005年   2457篇
  2004年   3095篇
  2003年   2391篇
  2002年   2242篇
  2001年   2100篇
  2000年   1741篇
  1999年   1653篇
  1998年   1489篇
  1997年   1540篇
  1996年   1696篇
  1995年   1467篇
  1994年   1473篇
  1993年   1474篇
  1992年   1523篇
  1991年   1449篇
  1990年   1442篇
  1989年   1367篇
  1988年   1246篇
  1987年   1143篇
  1986年   1185篇
  1985年   1443篇
  1984年   1313篇
  1983年   1303篇
  1982年   1253篇
  1981年   1173篇
  1980年   1165篇
  1979年   1264篇
  1978年   1215篇
  1977年   1127篇
  1976年   1017篇
  1975年   817篇
  1974年   817篇
  1973年   781篇
  1971年   630篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
111.
ABSTRACT It is argued that sport, like science or medicine, is a valued human practice and is characterised as much by the moral manner in which its participants conduct themselves as by the pursuit of its own skills, standards and excellences. Virtues, such as justice, honesty and courage, are not only necessary to pursue its goals but to protect it from being corrupted by external interests. After explicating the practice view of sport in contrast to the sociological view, the nature of competition in sport is discussed before examining two related issues: winning at all costs and the taking of performance-enhancing drugs. The importance of practices to education and the good life is also outlined.  相似文献   
112.
113.
将表象训练的原理运用于背越式跳高技术的教学过程中,为改进传统的教学方法,提高教学质量进行了有益的探讨和尝试.  相似文献   
114.
What is the future for libraries and their librarians? In trying to give an answer to this pressing question we do not deal with utopian libraries of the next century, but with the library and the librarian of the next decade. The emphasis is on libraries within educational and research institutions, especially university libraries. We examine the changes confronting the library of the future and identify four key aspects of the library of the future. It will be (i) a gateway to information, whatever format this information comes in and wherever it is located; (ii) an expertise centre; (iii) a physical entity, not only in the sense of being a social meeting place and place of scholarly interaction, but also as a place where students and other users are provided with modern study facilities and adequate user support; and (iv) a collection centre of printed material. Such libraries can only take on an appropriate shape and will only survive if the institutions that librarians serve in meet the four criteria outlined above. We look at the demands that will be made on professional library knowledge and skills and the new job responsibilities and job attitudes required.  相似文献   
115.
以广西82名业余体校男运动员为研究对象,运用数理统计方法,探讨了快肌百分比与有关身体素质指标和生理指标的相关程度,以及拟合的指标对快肌百分比的影响,旨在为速度性运动项目的选材提供理论依据。  相似文献   
116.
117.
The New Social Studies curriculum development movement was short-lived, in part because project staff were not sensitive to the realities of the educational context within which their materials and methods would be used. Although textbook-based recitation persists in social studies classrooms, textbooks are not a ready mechanism for reform. Among the reasons are the institutional constraints on publishers and the difficulty in effecting curricular change without appropriate teacher preparation and modifications in the educational environment. James P. Shaver id professor of secondary education, associate dean for research, College of Education, and acting dean of the School of Graduate Studies, Utah State University, Logan. He has been president of the National Council for the Social Studies and has received NCSS’s Citation for Exemplary Research. His numerous books and articles include materials for students, research reports, and discussion of educational rationale-building, rationales for social studies education, and research philosophy.  相似文献   
118.
This investigation was undertaken in an effort to establish physiological characteristics of soccer players and to relate them to positional roles. A total of 135 footballers (age 24.4 +/- 4.6 years) were assessed for body mass, % body fat, haemoglobin, maximal oxygen uptake (VO2 max), leg power, anaerobic capacity and speed prior to an English league season. The sample included 13 goalkeepers, 22 full-backs, 24 centre-backs, 35 midfield players and 41 forwards. The goalkeepers were significantly heavier (86.1 +/- 5.5 kg; P < 0.01) than all groups except the centre-backs, had significantly higher estimated body fat percentages than centre-backs, forwards, midfield players (P < 0.01) or full-backs (P < 0.05), significantly lower estimated VO2 max values (56.4 +/- 3.9 ml kg-1 min-1; P < 0.01) and were slowest over 60 m (12.71 +/- 0.42 s). The midfield players had the highest predicted VO2 max values (61.4 +/- 3.4 ml kg-1 min-1), this being significantly greater (P < 0.05) than for the centre-backs. The forwards were the fastest group over 60 m (12.19 +/- 0.30 s), being significantly quicker than goalkeepers or centre-backs (P < 0.01) and full-backs (P < 0.05). Anaerobic power, as well as knee extensor torques (corrected for body mass) and extensor-flexor ratios, were similar between groups. No difference in estimated body fat percentage was observed between any of the outfield players, and haemoglobin concentrations were similar among players of all positions.(ABSTRACT TRUNCATED AT 250 WORDS)  相似文献   
119.
120.
    
  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号