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   17891篇
  免费   558篇
各国政治   743篇
工人农民   698篇
世界政治   1513篇
外交国际关系   696篇
法律   10609篇
中国共产党   2篇
中国政治   79篇
政治理论   3927篇
综合类   182篇
  2020年   233篇
  2019年   277篇
  2018年   353篇
  2017年   436篇
  2016年   467篇
  2015年   318篇
  2014年   364篇
  2013年   1776篇
  2012年   434篇
  2011年   467篇
  2010年   369篇
  2009年   410篇
  2008年   472篇
  2007年   480篇
  2006年   469篇
  2005年   421篇
  2004年   427篇
  2003年   451篇
  2002年   403篇
  2001年   693篇
  2000年   637篇
  1999年   520篇
  1998年   298篇
  1997年   256篇
  1996年   212篇
  1995年   211篇
  1994年   251篇
  1993年   231篇
  1992年   342篇
  1991年   380篇
  1990年   337篇
  1989年   354篇
  1988年   321篇
  1987年   339篇
  1986年   337篇
  1985年   341篇
  1984年   290篇
  1983年   323篇
  1982年   260篇
  1981年   239篇
  1980年   182篇
  1979年   248篇
  1978年   169篇
  1977年   148篇
  1976年   131篇
  1975年   124篇
  1974年   139篇
  1973年   117篇
  1972年   115篇
  1971年   94篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
141.
142.
Although physical punishment has been studied for decades, there are gaps in the literature regarding frequently used form, context, and cross cultural differences. A comparison was made using 227 college students in the United States and Japan, who were presented with four scenarios and surveyed regarding attitudes toward physical punishment, perceptions of appropriate discipline methods, and past experience with physical punishment. Japanese and U.S. respondents reported similar personal experience with physical punishment (Japanese 86%, U.S. 91%). However, U.S. respondents reported a higher likelihood of being hit with an object than did Japanese respondents. For U.S. respondents, the bottom and the hand were the top two sites on the body used for physical punishment, whereas the head and the face were the top two places for the Japanese sample. Unlike U.S. respondents, type of child misbehavior was found to have an impact on Japanese respondents’ views on the appropriate discipline method.  相似文献   
143.
Research indicates that senators evaluate U.S. Supreme Court nominations on two ideological dimensions: the distance between themselves and the nominee, and the potential effect confirmation would have on the Court median. My analysis of nominations from 1968 to 2006 provides evidence that senators are also influenced by the ideological contrast between the nominee and the departing justice.  相似文献   
144.
A new literary programme has been started in the West AfricanService of the B.B.C., and this article is a reprint of oneof the talks. The Ibo speaker was formerly in the Customs, andqualified as a barrister last November: he is also the authorof numerous poems in English, and of a novel, The Prince ofUtete. The other two are schoolmasters working as Assistantsat the School of Oriental and African Studies. For technicalreasons, the orthography is not quite complete.  相似文献   
145.
Both theory and research have been refined to gain a better understanding of when race and ethnicity matter in justice proceedings. In the present research, this line of inquiry was continued by differentiating among minority youth to assess the extent being African American, Native American, and Asian American influenced juvenile justice decision making and how these effects compared to one another and Whites. Utilizing an interpretation of the symbolic threat thesis that emphasizes stereotyping, the authors anticipated Native Americans to be responded to more severely than African Americans, followed by Asian Americans who were anticipated to be responded to more like Whites. The results indicated partial support for these expectations.  相似文献   
146.
The present study drew on four competing theoretical perspectives to examine the relationship between family structure and juvenile delinquency. Using data from the Add Health Study, the authors examined nonserious and serious delinquent behavior across youth from different types of households and also considered how the association between family structure and delinquency might be conditioned by family processes and economic factors. Results from negative binomial regression analyses indicated that, in general, type of household was not a significant predictor of nonserious or serious delinquency. Rather, maternal attachment emerged as the most important determinant of delinquent behavior among youth from all family types. The results are discussed within the context of Hirschi's original interpretation of social control theory and future directions for research are suggested.  相似文献   
147.
Postmortem examination of a former professional basketball player revealed an abnormal heart, most notably a single coronary artery. The literature on single coronary arteries is briefly reviewed, and the possible mechanism which caused the patient's condition is considered. This case is particularly unusual because of the patient's profession, which is so physically demanding.  相似文献   
148.
The fingernail ridge patterns of a pair of identical twins were compared to each other, their parents, and an unrelated subject. The patterns of the twins' nails showed regions of strong similarity but were distinguishable from one another. Fewer similarities were found when comparing the nails to those of the parents and the unrelated control. The twins were shown to be monozygotic by means of DNA profiling. This therefore represents the first demonstration of unique fingernail ridge patterns in subjects shown conclusively to be identical twins. When the fingernail ridge patterns were examined with a scanning electron microscope, the backscattered electron (BEI) images were found to have superior contrast when compared to the secondary electron (SEI) images.  相似文献   
149.
150.
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