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   25451篇
  免费   429篇
  国内免费   17篇
教育   17989篇
科学研究   2374篇
各国文化   235篇
体育   2105篇
综合类   20篇
文化理论   211篇
信息传播   2963篇
  2022年   180篇
  2021年   280篇
  2020年   422篇
  2019年   648篇
  2018年   913篇
  2017年   931篇
  2016年   806篇
  2015年   486篇
  2014年   745篇
  2013年   4884篇
  2012年   734篇
  2011年   761篇
  2010年   558篇
  2009年   549篇
  2008年   593篇
  2007年   567篇
  2006年   470篇
  2005年   474篇
  2004年   419篇
  2003年   403篇
  2002年   388篇
  2001年   537篇
  2000年   454篇
  1999年   407篇
  1998年   250篇
  1997年   243篇
  1996年   285篇
  1995年   257篇
  1994年   208篇
  1993年   217篇
  1992年   355篇
  1991年   335篇
  1990年   322篇
  1989年   323篇
  1988年   286篇
  1987年   327篇
  1986年   290篇
  1985年   335篇
  1984年   277篇
  1983年   230篇
  1982年   215篇
  1981年   176篇
  1980年   148篇
  1979年   263篇
  1978年   197篇
  1977年   170篇
  1976年   149篇
  1975年   145篇
  1974年   154篇
  1971年   130篇
排序方式: 共有10000条查询结果,搜索用时 218 毫秒
21.
22.
Transcribing sign communication used simultaneously with spoken English presents investigators with a unique problem: the singular quality of the bimodal communicative interactions cannot be accurately depicted using accepted conventions for recording either spoken or signed language samples. This article proposes guidelines for transcribing such data. The need for guidelines arose during an earlier study of the language development of a hearing child of deaf parents. To meet the immediate needs of that study, rules and conventions from previous studies were combined with newly generated ones, resulting in the guidelines proposed in this article. The guidelines can be applied to data in which intermodal linguistic influence is suspected.  相似文献   
23.
Human generated environmental problems are significant issues of global concern. Despite this, varying attitudes towards environments continue to exist across the globe, impacting on environmental decision-making and action at local, national and international levels. This paper probes some of the similarities and differences in environmental attitudes amongst pre-service teachers in Australia, Republic of Maldives and Indonesia. Data were collected using an established environmental attitude questionnaire and individual interviews. The three communities exhibited a similar range of environmental attitudes using the established questionnaire but significant differences emerged when the interview data were analysed phenomenographically. These differences reflect diversity within and across cultural groups that cannot be satisfactorily explained by the theory underpinning the established questionnaire. Consequently, a revised conceptual framework is proposed.  相似文献   
24.
Duchenne Muscular Dystrophy (DMD) is a neurogenetic developmental disorder that presents with progressive muscular weakness. It is caused by a mutation in a gene that results in the absence of specific products that normally localize to muscle cells and the central nervous system (CNS). The majority of affected individuals have IQs within the normal range, generally with lower verbal than performance IQ scores. Prior work has demonstrated selective deficits on tests of verbal span and immediate memory. For the current study, 26 boys with DMD (and normal intellectual function) and their unaffected siblings were evaluated. Paired comparisons demonstrated that the children with DMD had significantly poorer academic achievement scores than their siblings, even though their vocabulary levels and home and educational environments were comparable. Children with DMD also had more behavioral concerns, physical disabilities, and poorer verbal memory spans. Linear regression indicated that behavioral concerns, executive function, and physical disability did not contribute substantially to academic performance, whereas performance on verbal span did. DMD presents with a selective developmental aberration in verbal span that has wide‐ranging consequences on learning skills.  相似文献   
25.
How accurate is the reported percent of students’reaching standards at the school level? How are standard errors for these statistics computed? How do estimates vary with choice of generalizability model?  相似文献   
26.
In recent years university presses have undergone some significant changes, such as expansion of their scope to include materials that may have appeal beyond the scholarly market. This article investigates, through the use of a survey of university libraries, the acquisition of university press products by libraries. In general, recent years have been changes in the relationship between university presses and libraries that have resulted in fewer items being purchased by the libraries.  相似文献   
27.
28.
29.
This article reviews the literature pertaining to the written composing ability of students with learning disabilities that was published primarily in the decade from 1980 to 1990. The papers included are either reports of research or discussions of instructional procedures that are based on research. The topics addressed include story composition, expository writing, training/intervention research, and rationales/procedures for instruction.  相似文献   
30.
The purpose of this article was to revitalize and disentangle common misconceptions about a scientific agenda for clinical supervision.  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