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   20511篇
  免费   330篇
  国内免费   58篇
教育   15288篇
科学研究   1352篇
各国文化   238篇
体育   1464篇
综合类   46篇
文化理论   124篇
信息传播   2387篇
  2021年   218篇
  2020年   291篇
  2019年   445篇
  2018年   666篇
  2017年   678篇
  2016年   637篇
  2015年   423篇
  2014年   573篇
  2013年   4159篇
  2012年   581篇
  2011年   590篇
  2010年   518篇
  2009年   508篇
  2008年   519篇
  2007年   485篇
  2006年   505篇
  2005年   451篇
  2004年   330篇
  2003年   314篇
  2002年   303篇
  2001年   410篇
  2000年   359篇
  1999年   295篇
  1998年   205篇
  1997年   196篇
  1996年   209篇
  1995年   195篇
  1994年   194篇
  1993年   185篇
  1992年   248篇
  1991年   234篇
  1990年   284篇
  1989年   249篇
  1988年   207篇
  1987年   218篇
  1986年   215篇
  1985年   215篇
  1984年   220篇
  1983年   198篇
  1982年   169篇
  1981年   177篇
  1980年   163篇
  1979年   217篇
  1978年   181篇
  1977年   139篇
  1976年   137篇
  1975年   122篇
  1974年   125篇
  1973年   122篇
  1971年   130篇
排序方式: 共有10000条查询结果,搜索用时 16 毫秒
11.
12.
Gordon  R. S.  Franklin  K. L.  Baker  J.  Davies  B. 《Sports Engineering》2004,7(3):131-138
Sports Engineering - A Monark cycle ergometer is a device globally used in physiological studies to measure the work and energy levels of exercising humans. In this paper a rope-braked cycle...  相似文献   
13.
Drawing distinctions on the basis of at least some case characteristics in making reporting decisions makes considerable sense. Using data from a national survey of mandated reporters that included vignettes in which case and personal characteristics were systematically varied, this paper examines the impact of selected characteristics while controlling for others. The data reveal that respondents noticed and responded to case characteristics. Abuse-relevant judgments and reporting intentions varied, often substantially, as a function of case characteristics. Three case characteristics--previous abuse, severity of abuse, and recantation--were powerful predictors of vignette outcomes. A history of previous abuse led to judgments of greater seriousness, a more salutary impact of a report, and greater likelihood of reporting. More severe abuse was more likely to be labelled as abuse, and was more likely to be reported. When the alleged victim retracted her accusation upon questioning by an authority figure, respondents were significantly less likely to intend a report. Child age, perpetrator intent and family socioeconomic status also influenced abuse-relevant judgments and reporting intentions. Respondents were more likely to intend a report when younger children, lazy or angry perpetrators and children from poorer families were portrayed.  相似文献   
14.
15.
16.
How has Item Response Theory helped solve problems in the development and use of computer-adaptive tests? Do we need to balance item content with computer-adaptive tests? Could we use IRT to evaluate unusual responses to computer-delivered tests?  相似文献   
17.
18.
The role of the literary agent and the reception granted agents by publishers have changed markedly over the course of the twentieth century. Henry Holt’s views of agents, written in the first decade of the century, help define the status and activities of agents at that time. These are compared with the role of agents today, using archival sources, the book trade literature, and interviews. Thomas L. Bonn, review editor of this journal, is a librarian, Library at State University College at Cortland. He is the author ofUnder Cover: An Illustrated History of American Mass Market Paperbacks andHeavy Traffic and High Culture: The New American Library as Literary Gatekeeper. He is working on a study of American literary agents.  相似文献   
19.
20.
The 1991 Janet Doe lecturer describes the vision held by the founders of the Medical Library Association of medical information being readily accessible to health professionals no matter how far they were located from major medical centers, and traces the pursuit of this vision to current outreach activities.  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