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   13449篇
  免费   162篇
  国内免费   9篇
教育   9503篇
科学研究   1333篇
各国文化   169篇
体育   976篇
综合类   6篇
文化理论   158篇
信息传播   1475篇
  2021年   133篇
  2020年   238篇
  2019年   337篇
  2018年   407篇
  2017年   416篇
  2016年   397篇
  2015年   252篇
  2014年   317篇
  2013年   2629篇
  2012年   319篇
  2011年   335篇
  2010年   280篇
  2009年   257篇
  2008年   310篇
  2007年   281篇
  2006年   258篇
  2005年   259篇
  2004年   253篇
  2003年   226篇
  2002年   215篇
  2001年   224篇
  2000年   223篇
  1999年   169篇
  1998年   131篇
  1997年   151篇
  1996年   165篇
  1995年   119篇
  1994年   122篇
  1993年   144篇
  1992年   182篇
  1991年   169篇
  1990年   169篇
  1989年   144篇
  1988年   146篇
  1987年   146篇
  1986年   145篇
  1985年   160篇
  1984年   144篇
  1983年   152篇
  1982年   139篇
  1981年   115篇
  1980年   113篇
  1979年   142篇
  1978年   135篇
  1977年   112篇
  1976年   99篇
  1975年   71篇
  1974年   80篇
  1973年   73篇
  1971年   65篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
11.
12.
13.
The author of this essay is the Minister for Education and Human Resources of Malta. It serves as a welcoming speech for the participants in the conference. The significance of 1995 as the International Year for Tolerance is outlined. The need for tolerance in all societies is explained as is the need for education for tolerance in schools.  相似文献   
14.
Standing on the white sands of Red Beach,it's hardto believe that US Navy bombers ever droned overthe surf on their way to drop explosives nearby.The beach,a semicircle(半圆形) of stark cliffs andswaying palms surrounding a sparkling azure sea,is asperfect a picture of paradise as the wallpaper in a 1970srumpus(喧闹) room。Silence is broken only by the  相似文献   
15.
16.
17.
The National Library of Medicine has had an enormous impact on health information services all over the world. Although NLM is primarily a national institution, it has become an important international resource by responding to requests from the international community. NLM has been influential in three major ways. First, NLM has provided a model for other national and regional health information services. Second, it has been a catalyst, in that MEDLARS and other services it provides formed the nucleus of many regional networks. NLM helped such networks get started by giving advice on how to set up services and build collections and by "training the trainers" on the MEDLARS system. Third, NLM has supported national and regional operations by providing the additional training and materials needed for day-to-day service.  相似文献   
18.
19.
A user study of the Index Medicus done at the Walter Reed Army Medical Center included responses from a group of sixty researchers, clinicians, residents, and interns. An analysis of the questionnaire shows that, while all respondents use the Index Medicus, most use it to search for a specific subject or a specific author reference. Comments received were critical of the delay from the time of journal publication until the appearance of its citation in Index Medicus. Suggestions were offered concerning the type of publication most of the respondents would prefer.  相似文献   
20.
Since a sizeable hospital must have a library, it must have a library committee. Like all hospital committees, this one is to help maintain standards of medical care and to mediate between staff and administration. Unlike others, it clusters around one elected member (the chairman) and one employee (the librarian). A dynamic librarian can, and should, influence and inspire the committee's deliberations; and must be able to depend upon the support of the physician members of the committee.  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