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   22349篇
  免费   750篇
  国内免费   11篇
  2020年   203篇
  2019年   207篇
  2018年   318篇
  2017年   359篇
  2016年   357篇
  2015年   230篇
  2014年   302篇
  2013年   1662篇
  2012年   601篇
  2011年   654篇
  2010年   401篇
  2009年   380篇
  2008年   554篇
  2007年   544篇
  2006年   499篇
  2005年   450篇
  2004年   439篇
  2003年   400篇
  2002年   455篇
  2001年   722篇
  2000年   744篇
  1999年   550篇
  1998年   256篇
  1997年   215篇
  1992年   449篇
  1991年   406篇
  1990年   443篇
  1989年   416篇
  1988年   396篇
  1987年   398篇
  1986年   404篇
  1985年   422篇
  1984年   333篇
  1983年   299篇
  1982年   239篇
  1981年   212篇
  1979年   387篇
  1978年   279篇
  1977年   251篇
  1976年   222篇
  1975年   341篇
  1974年   372篇
  1973年   351篇
  1972年   328篇
  1971年   284篇
  1970年   259篇
  1969年   320篇
  1968年   357篇
  1967年   320篇
  1966年   324篇
排序方式: 共有10000条查询结果,搜索用时 31 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