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   181671篇
  免费   8040篇
  国内免费   162篇
  189873篇
  2020年   2775篇
  2019年   3436篇
  2018年   3689篇
  2017年   4108篇
  2016年   4717篇
  2015年   3918篇
  2014年   4788篇
  2013年   23406篇
  2012年   5008篇
  2011年   4210篇
  2010年   4029篇
  2009年   4859篇
  2008年   4371篇
  2007年   3965篇
  2006年   4381篇
  2005年   4318篇
  2004年   3821篇
  2003年   3424篇
  2002年   3251篇
  2001年   3791篇
  2000年   3588篇
  1999年   3444篇
  1998年   2872篇
  1997年   2688篇
  1996年   2590篇
  1995年   2442篇
  1994年   2405篇
  1993年   2350篇
  1992年   2805篇
  1991年   2659篇
  1990年   2513篇
  1989年   2398篇
  1988年   2359篇
  1987年   2354篇
  1986年   2349篇
  1985年   2579篇
  1984年   2587篇
  1983年   2365篇
  1982年   2411篇
  1981年   2351篇
  1980年   2210篇
  1979年   2302篇
  1978年   2218篇
  1977年   2169篇
  1976年   1983篇
  1975年   2095篇
  1974年   2140篇
  1973年   1999篇
  1972年   1615篇
  1971年   1543篇
排序方式: 共有10000条查询结果,搜索用时 6 毫秒
191.
In five experiments, we examined 3‐ to 6‐year‐olds’ understanding that they could gain knowledge indirectly from someone who had seen something they had not. Consistent with previous research, children judged that an informant, who had seen inside a box, knew its contents. Similarly, when an informant marked a picture to indicate her suggestion as to the content of the box, 3‐ to 4‐year‐olds trusted this more frequently when the informant had seen inside the box than when she had not. Going beyond previous research, 3‐ to 4‐year‐olds were also sensitive to informants’ relevant experience when they had to look over a barrier to see the marked picture, or ask for the barrier to be raised. Yet when children had to elicit the informant's suggestion, rather than just consult a suggestion already present, even 4‐ to 5‐year‐olds were no more likely to do so when the informant had seen the box's content than when she had not, and no more likely to trust the well‐informed suggestion than the uninformed one. We conclude that young children who can ask questions may not yet fully understand the process by which they can gain accurate information from someone who has the experience they lack.  相似文献   
192.
193.
Adults are better at recognizing familiar faces from the internal facial features (eyes, nose, mouth) than from the external facial features (hair, face outline). However, previous research suggests that this “internal advantage” does not appear until relatively late in childhood, and some studies suggest that children rely on external features to recognize all faces, whether familiar or not. We use a matching task to examine face processing in 7-8- and 10-11-year-old children. We use a design in which all face stimuli can be used as familiar items (for participants who are classmates) and unfamiliar items (for participants from a different school). Using this design, we find an internal feature advantage for matching familiar faces, for both groups of children. The same children were then shown the external and internal features of their classmates and were asked to name or otherwise identify them. Again, both age groups identified more of their classmates correctly from the internal than the external features. This is the first time an internal advantage has been reported in this age group. Results suggest that children as young as 7 process faces in the same way as do adults, and that once procedural difficulties are overcome, the standard effects of familiarity are observed.  相似文献   
194.
Book reviews     
  相似文献   
195.
Book reviews     
TOATES, F. Animal Behaviour: A Systems Approach. Chichester: John Wiley and Sons. 1980. Pp. 299. Hardback £17. Paper back £6.40 ISBN 0 471 27724.

DICKINSON, A. Contemporary Animal Learning Theory. Cambridge: University Press. 1980. Pp. 177. Hardback £12.50. Paperback £3.95. ISBN 0 521 23469 7.  相似文献   
196.
197.
Despite this virtue's history as an instrument of women's oppression, modesty, at its most basic, means voluntary restraint of one's power, undertaken for the sake of others. It is a mechanism that modifies unequal power relationships and encourages greater compassion and fairness. I use a Christian perspective with influences from Jewish and Muslim sources to examine modesty. The modest person, I argue, must be in relationship with others, must be honestly aware of her impacts on others, must be sensitive to those impacts, compassionate toward others, and willing to hold back for others' sakes. Moreover, modesty is not only a virtue that pertains to sexuality and clothing, but it also can promote virtuous environmental behavior, particularly as it leads to awareness of, and sensitivity to, the effects of everyday behaviors on vulnerable others.  相似文献   
198.
199.
200.
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