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   121791篇
  免费   1875篇
  国内免费   240篇
教育   83843篇
科学研究   13540篇
各国文化   1993篇
体育   9808篇
综合类   176篇
文化理论   1084篇
信息传播   13462篇
  2021年   955篇
  2020年   1706篇
  2019年   2590篇
  2018年   3164篇
  2017年   3460篇
  2016年   3463篇
  2015年   2332篇
  2014年   3214篇
  2013年   27425篇
  2012年   2448篇
  2011年   2849篇
  2010年   2408篇
  2009年   2650篇
  2008年   2471篇
  2007年   2219篇
  2006年   2413篇
  2005年   2404篇
  2004年   3094篇
  2003年   2428篇
  2002年   2202篇
  2001年   2171篇
  2000年   1853篇
  1999年   1684篇
  1998年   1475篇
  1997年   1435篇
  1996年   1562篇
  1995年   1363篇
  1994年   1354篇
  1993年   1346篇
  1992年   1436篇
  1991年   1349篇
  1990年   1392篇
  1989年   1289篇
  1988年   1116篇
  1987年   1085篇
  1986年   1082篇
  1985年   1348篇
  1984年   1221篇
  1983年   1149篇
  1982年   1105篇
  1981年   1033篇
  1980年   990篇
  1979年   1151篇
  1978年   1084篇
  1977年   976篇
  1976年   893篇
  1975年   741篇
  1974年   750篇
  1973年   710篇
  1972年   550篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
71.
高原训练的生物学效应   总被引:2,自引:1,他引:1  
高原训练对人体有着复杂的生理学效应和训练学效应,是提高运动员运动能力的一种较好的赛前训练方法。对高原训练的起源及对人体呼吸、心血管、血液、骨骼肌、中枢神经等系统的影响进行了分析,为科学认识和实施高原训练提供参考。  相似文献   
72.
新世纪我国老年体育发展的困境与出路   总被引:1,自引:0,他引:1  
通过对新世纪我国老年体育发展所面临的主要困境与产生困境的社会背景进行分析和讨论,指出应加大政府宏观指导的力度、完善老年体育管理体制,注重老年体育消费市场的开发,加大老年体育专业指导人员的培养力度,拓宽筹集老年体育活动资金的渠道,丰富老年体育活动内容等。  相似文献   
73.
对加入WTO后我国高校体育教师素质的思考   总被引:2,自引:0,他引:2  
分析了我国普通高校体育教师素质的现状,论述了加入WTO后,优秀的高校体育教师应具备的素质,并提出了提高我国普通高校体育教师素质的建议。  相似文献   
74.
Many western countries are paying increasing attention to the organization and administration of graduate studies. Such attention has developed from primary concerns about completion times, completion percentages, programme quality, and student quality, as well as secondary concerns about supervisors, funding, coursework, inter-organizational co-operation, and policies and practices of both universities and research councils. Using information about British graduate programmes as a basis, the article presents policy issues related to research councils, funding councils, and control, followed by discussion of the themes of the nature of programmes, supervision and evaluation, completion time, quality, and innovation. The final sections address several concerns and offer some suggestions.  相似文献   
75.
76.
77.
This article describes the Engineering Professors' Conference (EPC) approach to quality assurance for Higher Education Institutions, which is currently the only formalized alternative to British Standard 5750 'Quality Systems'. The EPC approach is based on principles of quality assurance and Total Quality Management which have been developed in industry. These ideas are briefly outlined, and an opinion expressed on the interpretation and application of BSS7S0 for HE. The EPC model is explained, illustrated with example elements taken from the EPC Specification and Guidelines for Quality Assurance in Higher Education. A top-down approach to the development of an institutional quality system is described, based on a quality policy statement. Areas of activity which have an important impact on the quality of education are identified, emphasising the quality assurance requirements of academic departments. Supporting and administrative quality system requirements are also described, as these also play an important role in the quality of education. Formal quality procedures and documentation in key areas are proposed.  相似文献   
78.
Continuous observation of the physical activity of 56 preadolescent children was conducted in four regions of England from October 1988 to July 1989. Observations were undertaken during school break times, lunch times, and physical education lessons, as well as during the children's free time. Of total time observed, the children spent 32.4% of it engaged in moderate to vigorous physical activity (MVPA). Children were shown to be most active during school breaks and least active during free time at home. However, it is thought that cardiorespiratory benefits are best achieved by participation in sustained periods of MVPA. Only 8 (14%) of the 56 children were observed to participate in MVPA for sustained periods of 20 min or longer. A random sample of 55 physical education lessons was observed. Only 6 children engaged in MVPA for sustained periods of 5 min or more, and no children participated in MVPA for 10 min or longer. The implications of these results are that, although the children engaged in a reasonable amount of MVPA, it may not have been sustained for periods of sufficient length to produce a cardiovascular training response. Consideration is given to ways of promoting lifelong involvement in physical activity.  相似文献   
79.
本实验对训练动物予以类固醇药物,发现其肌力增强,但工作时间缩短,肌肉断裂强度和能量吸收无改变。胫骨、跟腱、屈趾肌腱和膝内侧副韧带的某些生物力学特性受到不同程度的影响,使其在激烈运动中易于受伤。  相似文献   
80.
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