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   224615篇
  免费   9359篇
  国内免费   167篇
  2020年   2936篇
  2019年   3615篇
  2018年   4343篇
  2017年   4703篇
  2016年   5269篇
  2015年   4090篇
  2014年   4979篇
  2013年   24212篇
  2012年   6601篇
  2011年   6264篇
  2010年   4900篇
  2009年   5320篇
  2008年   6064篇
  2007年   5832篇
  2006年   5855篇
  2005年   5629篇
  2004年   5073篇
  2003年   4639篇
  2002年   4454篇
  2001年   5494篇
  2000年   5195篇
  1999年   4521篇
  1998年   3105篇
  1997年   2898篇
  1996年   2783篇
  1995年   2602篇
  1994年   2539篇
  1993年   2512篇
  1992年   3747篇
  1991年   3512篇
  1990年   3417篇
  1989年   3172篇
  1988年   3165篇
  1987年   3088篇
  1986年   3132篇
  1985年   3343篇
  1984年   3191篇
  1983年   2844篇
  1982年   2602篇
  1981年   2570篇
  1980年   2403篇
  1979年   3053篇
  1978年   2624篇
  1977年   2467篇
  1976年   2324篇
  1975年   2650篇
  1974年   2837篇
  1973年   2843篇
  1972年   2301篇
  1968年   2260篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
211.
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   
212.
Ohne ZusammenfassungIn dankbarer Erinnerung an meinen verehrten Münchener Lehrer Kurt Huber, dessen frühzeitigen gewaltsamen Tod (13. 7. 43) wir noch immer beklagen. Die Arbeit entsprang einer seiner letzten wissenschaftlichen Anregungen.  相似文献   
213.
214.
Wray  K. Brad 《Synthese》2019,196(3):819-832
Synthese - Hoyningen-Huene (Systematicity: the nature of science, Oxford University Press, Oxford, 2013) develops an account of what science is, distinguishing it from common sense. According to...  相似文献   
215.
216.
217.
218.
Are different responses differentially associable with their consequences? An overshadowing design was used to try to answer this question for three responses previously studied in golden hamsters. In Experiment I, scrabbling was rapidly suppressed by electric shock punishment, and it overshadowed a tone which occurred between scrabbling and shock. In Experiment II, no evidence of response-shock association was obtained when open rearing was the punished response, and open rearing did not overshadow the tone. Punishment had some effect on face washing, but there was no statistically significant overshadowing with this response. These results are consistent with the idea that differences in punishment suppression among these three responses have an associative basis. They also demonstrate the usefulness of a novel paradigm for studying “preparedness” of response-reinforcer associations.  相似文献   
219.
220.
Godden  David 《Topoi》2019,38(4):725-750
Topoi - Robert Fogelin argued that the efficacy of our acts of reasons-giving depends on the normalcy of our discourse—to the extent that discourse is not normal disagreements occurring in it...  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