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   14912篇
  免费   242篇
  国内免费   11篇
教育   10409篇
科学研究   1741篇
各国文化   120篇
体育   1206篇
综合类   17篇
文化理论   193篇
信息传播   1479篇
  2022年   121篇
  2021年   169篇
  2020年   252篇
  2019年   374篇
  2018年   529篇
  2017年   538篇
  2016年   507篇
  2015年   310篇
  2014年   439篇
  2013年   2465篇
  2012年   370篇
  2011年   341篇
  2010年   348篇
  2009年   298篇
  2008年   311篇
  2007年   314篇
  2006年   291篇
  2005年   242篇
  2004年   271篇
  2003年   239篇
  2002年   258篇
  2001年   329篇
  2000年   344篇
  1999年   261篇
  1998年   148篇
  1997年   191篇
  1996年   185篇
  1995年   129篇
  1994年   142篇
  1993年   124篇
  1992年   204篇
  1991年   188篇
  1990年   220篇
  1989年   217篇
  1988年   185篇
  1987年   200篇
  1986年   175篇
  1985年   219篇
  1984年   162篇
  1983年   135篇
  1982年   131篇
  1981年   113篇
  1980年   118篇
  1979年   180篇
  1978年   138篇
  1977年   114篇
  1976年   92篇
  1975年   95篇
  1974年   100篇
  1973年   100篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
81.
82.
83.
84.
In collaborative problem solving, children produce and evaluate arguments for proposals. We investigated whether 3- and 5-year-olds (N = 192) can produce and evaluate arguments against those arguments (i.e., counter-arguments). In Study 1, each child within a peer dyad was privately given a reason to prefer one over another solution to a task. One child, however, was given further information that would refute the reasoning of their partner. Five-year-olds, but not 3-year-olds, identified and produced valid and relevant counter-arguments. In Study 2, 3-year-olds were given discourse training (discourse that contrasted valid and invalid counter-arguments) and then given the same problem-solving tasks. After training, 3-year-olds could also identify and produce valid and relevant counter-arguments. Thus, participating in discourse about reasons facilitates children’s counter-argumentation.  相似文献   
85.
86.
87.
In several of his papers, Charles S. Peirce illustrates processes of interpreting and understanding signs by examples from second language vocabulary teaching and learning. The insights conveyed by means of these little pedagogical scenarios are not meant as contributions to the psychology of second language learning, but they aim at elucidating fundamental semiotic implications of knowledge acquisition in general. Peirce's semiotic premise that a well‐understood sign is one that represents an object and creates an interpretant is essential to the understanding of how new words and signs in general can be taught and learned. The article argues that Peirce's theory of the object of the sign, especially of the necessity of collateral experience of the object of a sign, can help to understand the riddle posed by of the Meno paradox of the impossibility of learning what we do not yet know. It examines the semiotic implications of the didactic methods of teaching and learning through translation, ostension, mental and real images, as well as metacognition, and it shows how icons, indices, and symbols are essential to learning new words.  相似文献   
88.
89.
In the article we solve path planning task for an agent being multirotor unmanned aerial vehicle (multicopter). We propose an approach of estimating path geometry constraints based on UAV flight dynamics model and control constraints. Than we introduce a new path finding method which takes into consideration those geometry constraints and study this method both theoretically and empirically.  相似文献   
90.
This study aimed to explore how children with learning disabilities (LD) perceive their quality of life (QoL) and to compare self‐reports and proxy reports regarding their QoL. Children with LD, their typically developing peers, their parents and teachers responded to the child, parent, and teacher forms of KINDLR Questionnaire for Measuring Health‐Related Quality of Life (Ravens‐Sieberer & Bullinger, 1998). Findings showed that children with LD reported significantly lower QoL scores than those reported by typically developing peers. Intraclass correlation coefficients (ICCs) and t‐test results showed that agreement between child reports and parent‐proxy reports was either low or moderate on each QoL dimension. Findings of the study may be used to raise awareness regarding the social and educational needs of children with LD in Turkey.  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