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   107719篇
  免费   4515篇
  国内免费   53篇
  112287篇
  2020年   1202篇
  2019年   1423篇
  2018年   1996篇
  2017年   2013篇
  2016年   2162篇
  2015年   1564篇
  2014年   1859篇
  2013年   8735篇
  2012年   3488篇
  2011年   3492篇
  2010年   2150篇
  2009年   2146篇
  2008年   3002篇
  2007年   2974篇
  2006年   2669篇
  2005年   2344篇
  2004年   2336篇
  2003年   2179篇
  2002年   2157篇
  2001年   3368篇
  2000年   3212篇
  1999年   2424篇
  1998年   1168篇
  1997年   1049篇
  1996年   1074篇
  1992年   2090篇
  1991年   1948篇
  1990年   1965篇
  1989年   1813篇
  1988年   1807篇
  1987年   1666篇
  1986年   1705篇
  1985年   1852篇
  1984年   1488篇
  1983年   1346篇
  1982年   1032篇
  1979年   1598篇
  1978年   1134篇
  1977年   1034篇
  1976年   1045篇
  1975年   1312篇
  1974年   1530篇
  1973年   1599篇
  1972年   1376篇
  1971年   1263篇
  1970年   1154篇
  1969年   1180篇
  1968年   1514篇
  1967年   1329篇
  1966年   1236篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
51.
Two experiments examined repetition priming in the recognition of famous voices. In Experiment 1, reaction times for fame decisions to famous voice samples were shorter than in an unprimed condition, when voices were primed by a different voice sample of the same person having been presented in an earlier phase of the experiment. No effect of voice repetition was observed for non-famous voices. In Experiment 2, it was investigated whether this priming effect is voice-specific or whether it is related to post-perceptual processes in person recognition. Recognizing a famous voice was again primed by having earlier heard a different voice sample of that person. Although an earlier exposure to that person's name did not cause any priming, there was some indication of priming following an earlier exposure to that person's face. Finally, earlier exposure to the identical voice sample (as compared to a different voice sample from the same person) caused a considerable bias towards responding 'famous'-i.e. performance benefits for famous but costs for nonfamous voices. The findings suggestthat (1) repetition priming invoice recognition primarily involves the activation of perceptual representations of voices, and (2) it is important to determine the conditions in which priming causes bias effects that need to be disentangled from performance benefits.  相似文献   
52.
53.
Do the conditions under which promises are made determine whether they ought to be kept? Philosophers have placed a number of conditions on promising which, they hold, must be met in order to make promise-keeping obligatory. In so doing, they have distinguished valid promises from invalid promises and justified promises from promises that are not justified. Considering such conditions, one by one, we argue that they are mistaken. In the first place, the conditions they lay down are not necessary for either valid or justified promise-making. In the second place, promises need not meet such conditions in order to create moral obligations. In general, such analyses of promising fail because they suffer from a confusion between promise-making and promise-keeping. Philosophers have wrongly supposed that obligations to keep promises are dependent upon, or derivable from, the quality of the promises themselves, at the time they are made, instead of focusing on conditions that must be satisfied at the time when promises are supposed to be kept. It is not the quality of a promise that determines an obligation to keep it but the rightness or wrongness of performing the promised act.  相似文献   
54.
55.
56.
57.
58.
An electronic apparatus using infrared beams for monitoring the movements of individual bees under dark conditions is described. The searching behavior of workers in an arena was monitored over 2-h periods. Mean ambulatory velocity for one bee over a distance of 100 mm was 45.6±1.51 mm/sec (n=45). Thigmokinesis and temporal activity patterns are illustrated.  相似文献   
59.
陈莲笙道长生于1917年10月25日,上海市人.历任中国道教协会副会长,中国道教协会顾问,上海市道教协会会长.上海市道教协会名誉会长,上海城隍庙住持,上海道学院院长,<上海道教>杂志主编,上海市宗教学会理事,上海市政协第七届委员,上海市政协第八、九届常委等职.  相似文献   
60.
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