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   24918篇
  免费   339篇
  国内免费   72篇
教育   17908篇
科学研究   2107篇
各国文化   258篇
体育   2050篇
综合类   50篇
文化理论   172篇
信息传播   2784篇
  2021年   244篇
  2020年   339篇
  2019年   507篇
  2018年   710篇
  2017年   752篇
  2016年   677篇
  2015年   459篇
  2014年   636篇
  2013年   4857篇
  2012年   618篇
  2011年   631篇
  2010年   555篇
  2009年   529篇
  2008年   562篇
  2007年   562篇
  2006年   552篇
  2005年   498篇
  2004年   380篇
  2003年   392篇
  2002年   346篇
  2001年   495篇
  2000年   418篇
  1999年   388篇
  1998年   218篇
  1997年   218篇
  1996年   272篇
  1995年   209篇
  1994年   236篇
  1993年   215篇
  1992年   338篇
  1991年   340篇
  1990年   351篇
  1989年   335篇
  1988年   270篇
  1987年   287篇
  1986年   303篇
  1985年   297篇
  1984年   271篇
  1983年   290篇
  1982年   237篇
  1981年   228篇
  1980年   216篇
  1979年   340篇
  1978年   266篇
  1977年   212篇
  1976年   219篇
  1975年   182篇
  1974年   183篇
  1973年   159篇
  1971年   180篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
41.
42.
This study examined the argument patterns that result when Israeli-Jews and Palestinians confront each other during group dialogues. We tested predictions derived from two theories. The first was a theory of cultural communication which predicted that Israeli-Jews and Palestinians would argue in a manner consistent with their respective cultural communication codes known as dugri and musayra respectively. Thus, the Israeli-Jews were expected to be assertive and the Palestinians more accommodating. The second theory was rooted in majority/minority power relations and predicted the opposite. The data were generated from reconciliation-based dialogue groups of Israeli-Jews and Palestinians. Communicative acts were coded according to the Conversational Argument Coding Scheme. Analysis of covariance was used to determine which patterns of argument distinguished the groups, and to identify variance attributable to lag sequences and individuals. The results were supportive of predictions from majority/minority power relations.  相似文献   
43.
44.
冰上课教学方法与难点教学实践初探   总被引:1,自引:1,他引:0  
在教学实践中感到冰上课的难点有2个:站立和弯道技术.就冰上站立和弯道技术进行了技术和教学方法的初步探讨.在冰上首先要解决站立问题,能站立后滑行就比较容易;另一个难点就是弯道滑行,这点若也解决,冰上课就成功了.  相似文献   
45.
Executives recognize the value of maintaining access to information. More managers filter their own e-mail rather than have assistants do this task. Organizing and storing data for future use are left to the personal preference of the individual manager. Is this in the best interest of the organization? Are data being stored in a manner causing them to be irretrievable in the future? Are irrelevant data being stored? This study investigates the strategies used to store and retrieve e-mail. The results revealed that the primary search strategy was a reliance on memory. The labels assigned to the e-mail folders triggered the user's memory. Although, in the short term, memory is sufficient for organizing and retrieving information, the lack of transferability and preservation of this information poses a danger. The association between the electronic file label and the stored information is unique to the manager and may lead to inaccessibility of relevant corporate knowledge in the future.  相似文献   
46.
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   
47.
Cerebral activity, as reflected by power in the alpha waveband (8-13 Hz), was examined prior to the performance of three tasks with different effort and accuracy requirements. The study aimed to further investigate changes in activity observed in an earlier study in which expert karate performers exhibited significant increases in alpha band power during preparation for a training task. In contrast to the earlier research, the high effort task produced a significant decrease in 'alpha' power prior to performance. 'Alpha' power prior to the high accuracy task showed significant differences mediated by the outcome. Successful performance was preceded by higher levels of 'alpha' power than unsuccessful attempts. The reported use of a cognitive strategy on the first task produced a significant difference in activity, lower alpha power being associated with the use of such a technique.  相似文献   
48.
Book reviews     
Association of Research Libraries  相似文献   
49.
What is the typical amount of student answer‐changing that takes place in a low‐stakes test environment? Can we use this information to look for evidence of improper answer‐changing (cheating) on high‐stakes test?  相似文献   
50.
The many challenges faced by health sciences libraries of all types and sizes often require innovative solutions. When an innovative solution involves calculated risk taking, the approach is called intrapreneurial. At the University of Miami School of Medicine, an intrapreneurial approach solved the fiscal problems of the biomedical communications unit. The Louis Calder Memorial Library inherited these problems when the Department of the Library and Biomedical Communications was created in the early 1980s. In this paper, two intrapreneurial programs are described, and the benefit and suitability of this management style to information services are demonstrated.  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