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   20717篇
  免费   334篇
  国内免费   27篇
教育   14653篇
科学研究   1980篇
各国文化   282篇
体育   1780篇
综合类   9篇
文化理论   223篇
信息传播   2151篇
  2021年   208篇
  2020年   332篇
  2019年   470篇
  2018年   636篇
  2017年   639篇
  2016年   630篇
  2015年   445篇
  2014年   542篇
  2013年   4034篇
  2012年   504篇
  2011年   531篇
  2010年   471篇
  2009年   388篇
  2008年   539篇
  2007年   435篇
  2006年   429篇
  2005年   390篇
  2004年   364篇
  2003年   375篇
  2002年   332篇
  2001年   574篇
  2000年   399篇
  1999年   358篇
  1998年   215篇
  1997年   244篇
  1996年   224篇
  1995年   227篇
  1994年   235篇
  1993年   181篇
  1992年   259篇
  1991年   268篇
  1990年   267篇
  1989年   263篇
  1988年   227篇
  1987年   216篇
  1986年   206篇
  1985年   250篇
  1984年   203篇
  1983年   187篇
  1982年   190篇
  1981年   176篇
  1980年   174篇
  1979年   212篇
  1978年   160篇
  1977年   141篇
  1976年   121篇
  1975年   139篇
  1974年   125篇
  1973年   121篇
  1971年   106篇
排序方式: 共有10000条查询结果,搜索用时 303 毫秒
11.
ABSTRACT

To better understand doping-related attitude change, it is important to consider not only the amount of thinking (i.e., elaboration) done by message recipients, but also the favourability of their thoughts in response to the proposal, as well as the perceived validity in their thoughts. The main goal of the present study was to analyse the effects of a meta-cognitive process (i.e., thought validation) on attitudes related to doping. Thus, we randomly assigned participants to read a message either against or in favour of legalising several doping behaviours. Participants listed their thoughts regarding the proposal and indicated the perceived validity in their thoughts, then reported their attitudes. As hypothesised, the message against legalisation elicited more unfavourable thoughts and attitudes than the message in favour of legalisation. Most relevantly, the effects of the message direction on attitudes were greater for participants with higher (vs. lower) levels of thought validity. Furthermore, consistent with the thought validation process, results revealed that thought favourability was a better predictor of attitudes for participants with higher (vs. lower) perceived thought validity, indicating that perceiving one’s thoughts as valid plays an important role in persuasion. These findings provide novel insights for research and interventions regarding doping in sports.  相似文献   
12.
浅谈如何上好艺术体操选修课   总被引:1,自引:1,他引:0  
对普通高校艺术体操选修课教学从形体姿态的培养、教学成套动作的编排,音乐的选择及口令、手势的运用等,进行了分析探讨.  相似文献   
13.
14.
Measuring Search Engine Quality   总被引:12,自引:3,他引:9  
The effectiveness of twenty public search engines is evaluated using TREC-inspired methods and a set of 54 queries taken from real Web search logs. The World Wide Web is taken as the test collection and a combination of crawler and text retrieval system is evaluated. The engines are compared on a range of measures derivable from binary relevance judgments of the first seven live results returned. Statistical testing reveals a significant difference between engines and high intercorrelations between measures. Surprisingly, given the dynamic nature of the Web and the time elapsed, there is also a high correlation between results of this study and a previous study by Gordon and Pathak. For nearly all engines, there is a gradual decline in precision at increasing cutoff after some initial fluctuation. Performance of the engines as a group is found to be inferior to the group of participants in the TREC-8 Large Web task, although the best engines approach the median of those systems. Shortcomings of current Web search evaluation methodology are identified and recommendations are made for future improvements. In particular, the present study and its predecessors deal with queries which are assumed to derive from a need to find a selection of documents relevant to a topic. By contrast, real Web search reflects a range of other information need types which require different judging and different measures.  相似文献   
15.
This paper addresses the need to recognize the importance, and the challenges, of preserving the hugely expanding record of medicine today for historians of the future. We are faced not only with an increase in traditional publishing formats, but also with the rapid growth in electronic communications. Two celebrated medical cases, one from the late seventeenth century and one from the late twentieth, are used to illustrate the differences and the difficulties. The need for active and effective professional collaboration is stressed; libraries should work together to address these issues.  相似文献   
16.
论高校体育教学中学生创新思维能力的培养   总被引:3,自引:0,他引:3  
通过树立现代体育教学观念、优化体育课堂教学、优选体育教学法等几个方面论述了学生创新思维能力的培养。  相似文献   
17.
浅析足球运动员意志品质及培养方法   总被引:1,自引:1,他引:0  
阐述了足球运动中意志品质的作用和地位、培养足球运动员意志品质的意义及各种方法.  相似文献   
18.
19.
采用录像观察法、数理统计法和文献资料法对中国队在亚洲杯期间主力阵容与98世界杯前3强主力阵容变化进行比较研究.结果表明:98世界杯前3强队伍主力阵容在比赛期间基本保持完整,而中国队主力阵容在最后一场比赛中极不完整.研究认为:影响中国队比赛阵容完整性的主要因素是战斗性减员和非战斗性减员.建议国家队应配备体能教练和心理学、运动医学、营养学专家;加强运动员的自我保护意识,使运动损伤最小化;合理运用技术动作减少红黄牌的发生.  相似文献   
20.
根据少年短跑运动员生长发育和项目特点,探讨了以短跑技术为中心的全面身体训练,发展步长、步频、速度耐力,掌握跑的放松技能,心理训练,合理的营养等。  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