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   25154篇
  免费   202篇
  国内免费   21篇
教育   18244篇
科学研究   2773篇
各国文化   126篇
体育   1491篇
综合类   6篇
文化理论   480篇
信息传播   2257篇
  2021年   138篇
  2020年   196篇
  2019年   275篇
  2018年   2521篇
  2017年   2456篇
  2016年   1945篇
  2015年   377篇
  2014年   426篇
  2013年   2374篇
  2012年   525篇
  2011年   1076篇
  2010年   1145篇
  2009年   651篇
  2008年   918篇
  2007年   1411篇
  2006年   297篇
  2005年   593篇
  2004年   686篇
  2003年   572篇
  2002年   309篇
  2001年   448篇
  2000年   312篇
  1999年   253篇
  1998年   118篇
  1997年   170篇
  1996年   132篇
  1995年   123篇
  1994年   144篇
  1993年   110篇
  1992年   181篇
  1991年   197篇
  1990年   192篇
  1989年   198篇
  1988年   165篇
  1987年   158篇
  1986年   167篇
  1985年   205篇
  1984年   160篇
  1983年   148篇
  1982年   128篇
  1981年   121篇
  1980年   115篇
  1979年   163篇
  1978年   131篇
  1977年   116篇
  1976年   93篇
  1975年   112篇
  1974年   100篇
  1973年   107篇
  1971年   98篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
971.
The effects on retention of adjunct questions either placed at the end of a passage or inserted after their respective paragraphs within the passage were examined. The high school subjects were encouraged to review the materials after encountering the questions, a departure from traditional procedures in the field. Both treatments led to superior retention of the previously questioned facts when compared to a passage-only control group, but did not increase retention of previously unquestioned facts. The position of the adjunct questions did not differentially affect performance. The discrepancy of the results from those traditionally reported are interpreted in terms of the procedures employed.  相似文献   
972.
Why is there an increased need for quantitative indicators of student socioeconomic status at the school level? What alternative approaches have been used to measure SES? Can principals accurately estimate the SES distribution of their student populations? How do their estimates correlate with other indexes o f family SES?  相似文献   
973.
974.
975.
A marketing audit enables a library to look at audiences, services, and products with a structured approach. The audit can be used to assess operations and to provide a framework for ongoing decision making, evaluation, and long-range planning. An approach to the audit process is presented and its application is demonstrated in a case study featuring the American Hospital Association Resource Center.  相似文献   
976.
977.
978.
Hennepin County Community Services, a large urban agency in the midwestern United States, developed specific procedures for investigating complaints of abuse and neglect of children in foster care in 1980. During the period from May 1980 through November 1981, approximately 125 complaints of abuse and neglect in foster homes were investigated. This article discusses the Protocol, including the institutional abuse meeting, investigation by an independent third party, and statements of finding. Factors that appear to be significant in abusing foster parents are marital status, if the foster parents had children of their own, length of time licensed, and presence of previous complaints. Victims were slightly more likely to be male, aged 4-12. Many victims appeared to have adjusted well to the foster homes. Information is presented on how the abuse was reported. Recommendations include: investigations conducted by an objective third person, commitment of the administration, and enlistment of legal personnel and foster parents during implementation. Also included are prevention of abuse through comprehensive screening and then training of foster parents, social workers' close contact with foster parents and foster children, avoiding high risk placement, forbidding corporal punishment, and sensitizing social workers to abuse-neglect of children in foster care.  相似文献   
979.
980.
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