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   10678篇
  免费   687篇
  国内免费   244篇
  2024年   20篇
  2023年   168篇
  2022年   87篇
  2021年   145篇
  2020年   291篇
  2019年   318篇
  2018年   344篇
  2017年   315篇
  2016年   314篇
  2015年   187篇
  2014年   196篇
  2013年   1005篇
  2012年   150篇
  2011年   143篇
  2010年   132篇
  2009年   194篇
  2008年   232篇
  2007年   268篇
  2006年   282篇
  2005年   214篇
  2004年   162篇
  2003年   143篇
  2002年   117篇
  2001年   122篇
  2000年   97篇
  1999年   88篇
  1998年   49篇
  1997年   65篇
  1996年   75篇
  1995年   44篇
  1994年   37篇
  1993年   20篇
  1992年   33篇
  1991年   18篇
  1990年   16篇
  1989年   18篇
  1988年   8篇
  1985年   451篇
  1984年   517篇
  1983年   421篇
  1982年   522篇
  1981年   495篇
  1980年   514篇
  1979年   462篇
  1978年   490篇
  1977年   367篇
  1976年   370篇
  1975年   309篇
  1974年   308篇
  1973年   254篇
排序方式: 共有10000条查询结果,搜索用时 953 毫秒
891.
892.
893.
894.
895.
896.
897.
898.
899.
In the present study, the discourse interaction between adult and child was examined in terms of the content of their utterances, and the linguistic and contextual relations between their messages, in order to investigate how children use the information from adults' input sentences to form contingent responses. The analyses described were based on longitudinal data from four children from approximately 21 to 36 months of age. Categories of child discourse, their development and their interactions with aspects of prior adult utterances form the major results of the study. Child utterances were identified as adjacent (immediately preceded by an adult utterance), or as nonadjacent (not immediately preceded by an adult utterance). Adjacent utterances were either contingent (shared the same topic and added new information relative to the topic of the prior utterance), imitative (shared the same topic but did not add new information), or noncontingent (did not share the same topic). From the beginning, the adjacent speech was greater than nonadjacent speech. Contingent speech increased over time; in particular, linguistically contingent speech (speech that expanded the verb relation of the prior adult utterance with added or replaced constituents within a clause) showed the greatest developmental increase. Linguistically contingent speech occurred more often after questions than nonquestions. The results are discussed in terms of how the differential requirements for processing information in antecedent messages is related to language learning.  相似文献   
900.
The relationship between career maturity and self-concepts of 252 sixth-grade black males was investigated. Student samples of suburban and urban middle- and urban lower-class were drawn from 42 different school settings located in Monroe, Erie, and Westchester Counties of New York State. The Attitude Scale of the Career Maturity Inventory and the Coopersmith Self-Esteem Inventory were used to assess the association of career maturity and self-concepts. Results indicated relatively weak-positive relationships between career maturity and self-concepts. Significant career maturity differences were found. However, self-concepts of the three groups were not statistically significantly different. Of the set of independent variables predicting and estimating variance accounted for (socioeconomic status, family intactness, place of residence, and reading), socioeconomic status was found to have the strongest predictive value on career maturity. It was suggested that researchers examine elementary school black students' career development in view of the group with whom they identify most.  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