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   15241篇
  免费   171篇
  国内免费   39篇
教育   10838篇
科学研究   1379篇
各国文化   80篇
体育   1393篇
综合类   58篇
文化理论   86篇
信息传播   1617篇
  2021年   103篇
  2020年   154篇
  2019年   253篇
  2018年   350篇
  2017年   359篇
  2016年   330篇
  2015年   202篇
  2014年   294篇
  2013年   2593篇
  2012年   313篇
  2011年   668篇
  2010年   276篇
  2009年   265篇
  2008年   367篇
  2007年   295篇
  2006年   385篇
  2005年   269篇
  2004年   419篇
  2003年   264篇
  2002年   302篇
  2001年   348篇
  2000年   343篇
  1999年   264篇
  1998年   142篇
  1997年   177篇
  1996年   180篇
  1995年   182篇
  1994年   141篇
  1993年   173篇
  1992年   238篇
  1991年   211篇
  1990年   209篇
  1989年   245篇
  1988年   245篇
  1987年   205篇
  1986年   204篇
  1985年   216篇
  1984年   189篇
  1983年   230篇
  1982年   170篇
  1981年   159篇
  1980年   156篇
  1979年   229篇
  1978年   182篇
  1977年   164篇
  1976年   149篇
  1975年   128篇
  1974年   119篇
  1973年   125篇
  1971年   106篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
11.
12.
13.
Three factors tied with secondary student success in content‐area reading are demonstrated: (a) validated teacher‐focused and student‐focused interventions, (b) integrated and comprehensive service delivery systems, and (c) well‐designed, data‐based professional developmental programs. Difficult challenges face secondary students with LD and their teachers with regard to these students’ participation and success in required general education classes. Recently, instructional methods and materials have been developed and validated for promoting these students’ success. Some of them focus on how general education teachers plan and teach their content‐area courses; others focus on giving students the strategies they need to respond independently to the demands of their courses. This article describes these instructional methods, a service‐delivery model for implementing these interventions in secondary schools, and professional‐development mechanisms and administrative support that must be in place for the model to be maintained effectively.  相似文献   
14.
Naoko Saito has made a good case for emphasising the 'tragic' dimension within Dewey's pragmatism. My response suggests ways in which Saito has not gone far enough. She does not adequately move beyond 'procedural pragmatism' to a 'programmatic pragmatism' which offers substantive articulations about the human good. In addition, her emphasis on 'Emersonian perfectionism' is misguided. Both the language of 'perfectionism' and the figure of Emerson are unsuitable for the project she intends. Speaking more concretely of a 'tragic–comic meliorism' allied to the novelist Hawthorne, it is suggested, provides a more fruitful path.  相似文献   
15.
在继承中华民族传统美德的基础上,研究和开发具有时代价值意义的武德资源,对于发挥武术文化在世界上的影响,为武术真正走向世界都具有重要的意义。  相似文献   
16.
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   
17.
注重指导学生掌握正确阅读方法,使他们广泛、快捷地获得知识,是语文教师责无旁贷的。最佳阅读方法是:通揽全篇,寻觅精华的泛读与咬文嚼字、钻透精髓的精读相结合。  相似文献   
18.
19.
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   
20.
Cerebral activity, as reflected by power in the alpha waveband (8-13 Hz), was examined prior to the performance of three tasks with different effort and accuracy requirements. The study aimed to further investigate changes in activity observed in an earlier study in which expert karate performers exhibited significant increases in alpha band power during preparation for a training task. In contrast to the earlier research, the high effort task produced a significant decrease in 'alpha' power prior to performance. 'Alpha' power prior to the high accuracy task showed significant differences mediated by the outcome. Successful performance was preceded by higher levels of 'alpha' power than unsuccessful attempts. The reported use of a cognitive strategy on the first task produced a significant difference in activity, lower alpha power being associated with the use of such a technique.  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