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   45264篇
  免费   1692篇
  国内免费   23篇
  46979篇
  2020年   464篇
  2019年   469篇
  2018年   700篇
  2017年   672篇
  2016年   741篇
  2015年   527篇
  2014年   662篇
  2013年   3284篇
  2012年   1217篇
  2011年   1276篇
  2010年   734篇
  2009年   821篇
  2008年   1131篇
  2007年   1083篇
  2006年   982篇
  2005年   922篇
  2004年   860篇
  2003年   857篇
  2002年   849篇
  2001年   1385篇
  2000年   1350篇
  1999年   1006篇
  1998年   461篇
  1997年   427篇
  1992年   912篇
  1991年   826篇
  1990年   868篇
  1989年   824篇
  1988年   747篇
  1987年   746篇
  1986年   790篇
  1985年   869篇
  1984年   714篇
  1983年   639篇
  1982年   463篇
  1981年   487篇
  1979年   724篇
  1978年   553篇
  1977年   469篇
  1976年   458篇
  1975年   676篇
  1974年   765篇
  1973年   787篇
  1972年   660篇
  1971年   617篇
  1970年   561篇
  1969年   605篇
  1968年   747篇
  1967年   695篇
  1966年   700篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
11.
12.
13.
Preface     
Kurt H. Wolff 《Human Studies》1984,7(3-4):105-106
  相似文献   
14.
Some languages create the impression of being stress timed. Claims have been made that this timing of stressed syllables enables the listener to predict the future locations of informative parts later in a sentence. The fact that phoneme monitoring is delayed when targets in a spoken sentence are displaced has been taken as supporting this claim (Meltzer, Martin, Bergfeld Mills, Imhoff and Zohar, 1976). In the present study temporal displacement was induced without introducing phonetic discontinuities. In Dutch sentences a word just in advance of a target-bearing word was replaced by another one differing in length. Results show that the temporal displacement per se did not have any effect on phoneme-monitoring reaction times. Implications for a theory of fpeech processing are discussed.  相似文献   
15.
OBJECTIVE: To test a theoretical model of how ethnic pride and self-control are related to risk and protective factors. DESIGN: A community sample of 670 African American youth (mean age = 11.2 years) were interviewed in households. MAIN OUTCOME MEASURES: Measures of cigarette smoking, alcohol use, and sexual behavior (lifetime to past month). RESULTS: Structural modeling analyses indicated parenting was related to self-control and self-esteem, and racial socialization was related to ethnic pride. Self-control and self-esteem variables were related to levels of deviance-prone attitudes and to perceptions of engagers in, or abstainers from, substance use and sexual behavior. The proximal factors (behavioral willingness, resistance efficacy, and peer behavior) had substantial relations to the criterion variables. Participant gender and parental education also had several paths in the model. Results were generally similar for the 2 outcome behaviors. CONCLUSIONS: In this population, self-esteem and self-control are related to parenting approaches and have pathways to attitudes and social perceptions that are significant factors for predisposing to, or protecting against, early involvement in substance use and sexual behavior.  相似文献   
16.
17.
18.
19.
We report an eye movement experiment investigating the influence of the focus operator only on syntactic processing of "long" relative clause sentences. Paterson, Liversedge, and Underwood (1999) found that readers were garden pathed by "short" reduced relative clause sentences containing the focus operator only . They argued that due to thematic differences between "short" and "long" relative clause sentences, garden path effect might not occur when "long" reduced relative clause sentences are read. Eye-tracking data show that garden path effects found during initial processing of the disambiguating verb of "long" reduced sentences without only were absent or delayed in the case of counterparts with only . We discuss our results in terms of current theories of sentence processing.  相似文献   
20.
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