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   38378篇
  免费   569篇
  国内免费   150篇
教育   27310篇
科学研究   4129篇
各国文化   311篇
体育   2808篇
综合类   44篇
文化理论   382篇
信息传播   4113篇
  2021年   307篇
  2020年   534篇
  2019年   751篇
  2018年   1538篇
  2017年   1586篇
  2016年   1377篇
  2015年   652篇
  2014年   840篇
  2013年   6551篇
  2012年   869篇
  2011年   1131篇
  2010年   903篇
  2009年   778篇
  2008年   899篇
  2007年   960篇
  2006年   675篇
  2005年   682篇
  2004年   695篇
  2003年   620篇
  2002年   611篇
  2001年   632篇
  2000年   626篇
  1999年   620篇
  1998年   341篇
  1997年   367篇
  1996年   418篇
  1995年   367篇
  1994年   325篇
  1993年   320篇
  1992年   484篇
  1991年   480篇
  1990年   522篇
  1989年   523篇
  1988年   471篇
  1987年   431篇
  1986年   436篇
  1985年   528篇
  1984年   457篇
  1983年   428篇
  1982年   360篇
  1981年   356篇
  1980年   310篇
  1979年   451篇
  1978年   382篇
  1977年   357篇
  1976年   296篇
  1975年   245篇
  1974年   259篇
  1973年   265篇
  1972年   219篇
排序方式: 共有10000条查询结果,搜索用时 171 毫秒
41.
42.
43.
Digital documents in the networked information environment fundamentally change the ways that visual materials can be used in education and scholarly discourse. These new uses raise questions about research library strategies with regard to digitized visual materials as a part of their collections, challenge assumptions underlying intellectual property rights for images and their scope, and offer ways in which visual literacy can become a more integral part of the common educational experience.  相似文献   
44.
The 1991 Janet Doe lecturer describes the vision held by the founders of the Medical Library Association of medical information being readily accessible to health professionals no matter how far they were located from major medical centers, and traces the pursuit of this vision to current outreach activities.  相似文献   
45.
Book reviews     
  相似文献   
46.
47.
This article focuses on several conceptual and structural issues that are central to copyright compliance in the electronic age. It presumes the development of a national electronic network for storing, organizing, accessing, managing, and charging for information. The article first discusses the implications of constructing a comprehensive electronic “highway,” or Digital Library System (DLS), which would link information to the widespread community of users. It then presents the ramifications of a highly decentralized set of subsystems serving rights holders and users, linked by protocols established by the DLS. A discussion of the implications of digital interchangeability for copyright follows. The article ends with an analysis of alternatives to existing intellectual property rights conveyance systems, and concludes that current ownership structures, and systems for conveying rights and royalties, will remain the foundation for copyright in the electronic world. This article appeared in a slightly different form in theProceedings of the Twelfth National Online Meeting—1991, and is published here with the permission of Learned Information, Inc., Medford, N.J.  相似文献   
48.
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   
49.
Through the employment of a hybrid research model blending concept mapping and stimulated recall methodologies, this study explored the nature of a Pastoral Care Teacher's theory of action; the relationship between those beliefs and ideals and interactive thinking; and specific actions in effectively teaching a Pastoral Care issue. In undertaking the research a group of Year Eight boys at the Anglican Church Grammar School (Churchie) provided the context. The study shows that: (i) the teacher possessed a broad knowledge and understanding of the nature of Pastoral Care at Churchie; and (ii) the lessons undertaken, the pedagogy employed, and the knowledge elicited closely resembled the teacher's philosophies and thinking.  相似文献   
50.
The poor reading achievement of African-American children in urban schools is well established. African-American children from low-income homes may be at particular risk for reading difficulties, although middle-income children often fare poorly as well. Intervention efforts have focused on children in kindergarten through fifth grade. This article suggests that prevention efforts must begin prior to kindergarten entry. Several key variables that may influence young children's performance, including poverty, general oral language skills, dialectal variations, home literacy practices, standardized testing bias, and teacher expectations, are explored. Future directions for research addressing emergent literacy in African-American children are discussed throughout.  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