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   19921篇
  免费   185篇
  国内免费   20篇
教育   12934篇
科学研究   3285篇
各国文化   199篇
体育   1426篇
综合类   10篇
文化理论   156篇
信息传播   2116篇
  2021年   147篇
  2020年   233篇
  2019年   357篇
  2018年   426篇
  2017年   447篇
  2016年   367篇
  2015年   264篇
  2014年   379篇
  2013年   3859篇
  2012年   380篇
  2011年   360篇
  2010年   309篇
  2009年   311篇
  2008年   336篇
  2007年   347篇
  2006年   303篇
  2005年   280篇
  2004年   254篇
  2003年   245篇
  2002年   239篇
  2001年   286篇
  2000年   313篇
  1999年   271篇
  1998年   165篇
  1997年   168篇
  1996年   201篇
  1995年   151篇
  1994年   174篇
  1993年   181篇
  1992年   240篇
  1991年   262篇
  1990年   264篇
  1989年   284篇
  1988年   223篇
  1987年   223篇
  1986年   267篇
  1985年   274篇
  1984年   255篇
  1983年   244篇
  1982年   205篇
  1981年   191篇
  1980年   170篇
  1979年   245篇
  1978年   224篇
  1977年   186篇
  1976年   175篇
  1975年   156篇
  1974年   165篇
  1973年   157篇
  1971年   147篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
1.
Children are sensitive to a number of considerations influencing distributions of resources, including equality, equity, and reciprocity. We tested whether children use a specific type of reciprocity norm—market norms—in which resources are distributed differentially based strictly on amount offered in return. In two studies, 195 children 5–10 years and 60 adults distributed stickers to friends offering same or different amounts of money. Overall, participants distributed more equally when offers were the same and more unequally when offers were different. Although sensitive to why friends offered different amounts of money, children increasingly incorporated market norms into their distributions with age, as the oldest children and adults distributed more to those offering more, irrespective of the reasons provided.  相似文献   
2.
The value that willed body donors provide to medical education is priceless. Their precious gift helps to teach anatomy, spatial relationships between morphological structures, anatomical variation, and professionalism to medical students in a way that plastic models, podcasts, and lectures cannot. They are also an important resource for medical research and a wide variety of postgraduate training opportunities. While many body donation programs throughout the world are nonprofit organizations, there are body donation companies in the United States that sell donors for-profit. These “body brokers” have accumulated large profits from this business. It is incongruous that others would profit from such a priceless, freely donated gift. To prevent this incongruity, it is proposed that the international anatomical community develop a normative culture (a bioethos) for body donation programs. This would involve the conscious and systematic development of ethical principles for the day-to-day policies and practices of institutions that collect and use human bodies. With the development of this bioethos, a cultural shift in how donors are treated would occur and, over time, this would become the normal practice. These principles would become fundamental and foundational for the procurement and use of priceless human tissues.  相似文献   
3.
As a group, students with learning disabilities (LD) have social difficulties. One possible explanation for these difficulties is the unique way they process social information. Although students with LD may differ from their nondisabled peers in their social cognition, investigators have suggested the presence of subgroups within the population of students with LD who may differ in their social competence and, thereby, shed light on the source of the difficulties. The present exploratory study examined how two subgroups of students with LD in inclusive settings, students with high and low social status, perceive social situations. Using a sociometric technique, three students with LD receiving high social‐status ratings and three students with LD receiving low social‐status ratings were identified. A qualitative approach was used to gather and evaluate data from the participants and their teachers. Results suggested differences between the two subgroups in their (1) sensitivity to cues in the environment, (2) interpretation of social situations in relation to their own experiences, and (3) levels of self‐control. Implications of these findings for practice and future research are discussed.  相似文献   
4.
5.
本期推出两篇短小精美的文章,表达了父爱的温馨,有兴趣的读者朋友不妨将它们作为范文来诵渎。  相似文献   
6.
7.
8.
9.
10.
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