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   42604篇
  免费   766篇
  国内免费   11篇
  2020年   219篇
  2018年   3703篇
  2017年   3070篇
  2016年   2538篇
  2015年   421篇
  2014年   383篇
  2013年   1760篇
  2012年   1164篇
  2011年   2976篇
  2010年   2854篇
  2009年   1818篇
  2008年   2210篇
  2007年   2663篇
  2006年   541篇
  2005年   674篇
  2004年   617篇
  2003年   510篇
  2002年   535篇
  2001年   765篇
  2000年   803篇
  1999年   578篇
  1998年   282篇
  1997年   237篇
  1996年   219篇
  1992年   458篇
  1991年   414篇
  1990年   459篇
  1989年   427篇
  1988年   408篇
  1987年   408篇
  1986年   412篇
  1985年   428篇
  1984年   342篇
  1983年   301篇
  1982年   247篇
  1981年   216篇
  1979年   393篇
  1978年   282篇
  1977年   253篇
  1976年   225篇
  1975年   347篇
  1974年   374篇
  1973年   358篇
  1972年   331篇
  1971年   293篇
  1970年   263篇
  1969年   327篇
  1968年   366篇
  1967年   327篇
  1966年   329篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
61.
62.
63.
A square-wave grating from which the fundamental harmonic has been subtracted (missing fundamental grating) when viewed from a suitable distance appears similar to another grating of periodicity three times higher. The neurons of the visual cortex of the cat, in a given range of spatial frequencies characteristic of each cell, give similar responses to the two gratings.  相似文献   
64.
65.
66.
67.
Gábor L. Ambrus 《Zygon》2020,55(4):875-897
We are easily misguided as to the true nature of Facebook, and tend to treat it simply as a powerful technological instrument in the service of human intentions. We can, however, gain a better picture of it through recourse to the Jewish tradition of the golem, an image of human beings, created by them in a re-enactment of their own creation by God. It turns into a magic servant in modernity with an inherent dynamic running between its human and its subhuman characteristics. This dynamic is the main cause behind its becoming uncontrollable. In like manner, what is subhuman in Facebook serves its masters and functions under their total control, but also empowers Facebook's increasingly human operation, an algorithm-based capability which raises growing doubts about what counts as human. Facebook implies the crisis of humanity which coincides with the “death of God,” that is, the obsolescence of the idea of a divine creator.  相似文献   
68.
69.
Previous research has revealed that individuals have expectations for the development of romance based on personal experience and cultural images. A series of research questions and hypotheses was generated and a sequence of hierarchical log-linear analysis models axis developed to test (a) the effect of gender and knowledge of relational stage and relationship type on prediction of next-occurring actions in the development of a romance, (b) the use of compliance-gaining strategies intended to advance a relationship to the next stage, and (c) justification of secondary goals in which participants reported why they chose the strategies they did as opposed to other alternatives. The data revealed effects for relational stage progression on prediction of ensuing actions. Ingratiation, explanation, and direct requests were popular strategies for developing intimacy. Gender differences in terms of secondary goals were reported. Results are discussed in terms of relational memory structures for the development of intimacy.  相似文献   
70.
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