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   22447篇
  免费   754篇
  国内免费   11篇
  2020年   206篇
  2019年   207篇
  2018年   321篇
  2017年   364篇
  2016年   364篇
  2015年   234篇
  2014年   305篇
  2013年   1656篇
  2012年   602篇
  2011年   659篇
  2010年   405篇
  2009年   381篇
  2008年   558篇
  2007年   554篇
  2006年   499篇
  2005年   450篇
  2004年   439篇
  2003年   405篇
  2002年   457篇
  2001年   723篇
  2000年   747篇
  1999年   557篇
  1998年   256篇
  1997年   215篇
  1992年   449篇
  1991年   409篇
  1990年   442篇
  1989年   415篇
  1988年   398篇
  1987年   401篇
  1986年   405篇
  1985年   422篇
  1984年   335篇
  1983年   300篇
  1982年   240篇
  1981年   215篇
  1979年   387篇
  1978年   281篇
  1977年   252篇
  1976年   223篇
  1975年   344篇
  1974年   374篇
  1973年   353篇
  1972年   328篇
  1971年   288篇
  1970年   260篇
  1969年   322篇
  1968年   359篇
  1967年   322篇
  1966年   324篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
71.
Children's perception of scale and contour in melodies was investigated in five studies. Experimental tasks included judging transposed renditions of melodies (Studies 1 and 3), discriminating between transposed renditions of a melody (Study 2), judging contour-preserving transformations of melodies (Study 4), and judging similarity to a familiar target melody of transformations preserving rhythm or rhythm and contour (Study 5). The first and second studies showed that young children detect key transposition changes even in familiar melodies and they perceive similarity over key transpositions even in unfamiliar melodies. Young children also are sensitive to melodic contour over transformations that preserve it (Study 5), yet they distinguish spontaneously between melodies with the same contour and different intervals (Study 4). The key distance effect reported in the literature did not occur in the tasks of this investigation (Studies 1 and 3), and it may be apparent only for melodies shorter or more impoverished than those used here.  相似文献   
72.
We examined the functional role of verbalizations in the generalization of self-instructional training with preschoolers. Children learned to overtly self-instruct during classroom work periods prior to covert training. Data were collected on children's acquisition of verbal regulation during training and on overt use of self-instructions in the classroom generalization setting. Results of a multiple baseline design across subjects indicated that treatment effects were evident in the training setting but did not generalize to the classroom until children were emitting overt self-instructions in the classroom itself. The production of self-verbalizations in the generalization setting was related to changes in correct responding, on-task behavior, and efficiency in completing academic work.  相似文献   
73.
Inexperienced beer-drinkers who could not pass a beer-flavor discrimination test were divided into a taste group, which received additional perceptual experience with beer flavors; a verbal group, which received instruction in beer flavor terminology; a taste/verbal group, which received both additional experience and instruction; and a control group. Before and after training, all subjects participated in a similarity rating task involving beer flavors and flavor-related adjectives. Additional taste experience--but not increased experience with beer-flavor terminology--improved novices' ability to detect identical beer flavors. Results are discussed in terms of the trainability of flavor discrimination and the role of cognitive factors (both flavor-related and flavor-independent) in marketing beverages.  相似文献   
74.
A parafoveally presented target character usually is identified more accurately when flanked by a nontarget character to its foveal side than when flanked by one to its peripheral side. An outside-in process of analysis produced by uncertainty about the target's position could contribute to this asymmetry. Current results revealed a greater asymmetry with relative target position blocked than with it mixed over trials, suggesting that target position uncertainty leads to inside-out, rather than outside-in, analysis.  相似文献   
75.
76.
77.
78.
79.
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