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   54369篇
  免费   801篇
  国内免费   34篇
教育   39059篇
科学研究   4639篇
各国文化   553篇
体育   4510篇
综合类   24篇
文化理论   471篇
信息传播   5948篇
  2021年   560篇
  2020年   870篇
  2019年   1324篇
  2018年   1785篇
  2017年   1762篇
  2016年   1594篇
  2015年   967篇
  2014年   1358篇
  2013年   10498篇
  2012年   1282篇
  2011年   1388篇
  2010年   1018篇
  2009年   1042篇
  2008年   1210篇
  2007年   1064篇
  2006年   1040篇
  2005年   858篇
  2004年   853篇
  2003年   744篇
  2002年   805篇
  2001年   1038篇
  2000年   995篇
  1999年   884篇
  1998年   539篇
  1997年   555篇
  1996年   641篇
  1995年   589篇
  1994年   517篇
  1993年   526篇
  1992年   739篇
  1991年   734篇
  1990年   724篇
  1989年   765篇
  1988年   694篇
  1987年   695篇
  1986年   670篇
  1985年   756篇
  1984年   627篇
  1983年   637篇
  1982年   530篇
  1981年   495篇
  1980年   501篇
  1979年   705篇
  1978年   540篇
  1977年   486篇
  1976年   435篇
  1975年   381篇
  1974年   396篇
  1973年   376篇
  1971年   361篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
71.
72.
There is limited information on the anthropometry, strength, endurance and flexibility of female rock climbers. The aim of this study was to compare these characteristics in three groups of females: Group 1 comprised 10 elite climbers aged 31.3 +/- 5.0 years (mean +/- s) who had led to a standard of 'hard very severe'; Group 2 consisted of 10 recreational climbers aged 24.1 +/- 4.0 years who had led to a standard of 'severe'; and Group 3 comprised 10 physically active individuals aged 28.5 +/- 5.0 years who had not previously rock-climbed. The tests included finger strength (grip strength, finger strength measured on climbing-specific apparatus), flexibility, bent arm hang and pull-ups. Regression procedures (analysis of covariance) were used to examine the influence of body mass, leg length, height and age. For finger strength, the elite climbers recorded significantly higher values (P < 0.05) than the recreational climbers and non-climbers (four fingers, right hand: elite 321 +/- 18 N, recreational 251 +/- 14 N, non-climbers 256 +/- 15 N; four fingers, left hand: elite 307 +/- 14 N, recreational 248 +/- 12 N, non-climbers 243 +/- 11 N). For grip strength of the right hand, the elite climbers recorded significantly higher values than the recreational climbers only (elite 338 +/- 12 N, recreational 289 +/- 10 N, non-climbers 307 +/- 11 N). The results suggest that elite climbers have greater finger strength than recreational climbers and non-climbers.  相似文献   
73.
74.
75.
Three supervision modalities (live, delayed review, and verbal reports) in training marital and family counselors are discussed with attention given to goals, supervisory considerations, advantages, and disadvantages of each modality.  相似文献   
76.
77.
This article discusses the changing relationships of authors and publishers, the current trends and challenges they face, and the direction of these relationships in the future. As the STM publishing industry finds itself in the midst of significant technological and economic changes, this article provides background to these changes and looks at the key elements, including open access business development, institutional repository trends, and emerging public financing policies in the future.  相似文献   
78.
79.
80.
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   
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