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   9752篇
  免费   222篇
各国政治   537篇
工人农民   386篇
世界政治   593篇
外交国际关系   334篇
法律   6291篇
中国政治   66篇
政治理论   1698篇
综合类   69篇
  2020年   104篇
  2019年   114篇
  2018年   145篇
  2017年   175篇
  2016年   189篇
  2015年   135篇
  2014年   175篇
  2013年   953篇
  2012年   206篇
  2011年   224篇
  2010年   192篇
  2009年   181篇
  2008年   232篇
  2007年   266篇
  2006年   262篇
  2005年   219篇
  2004年   210篇
  2003年   232篇
  2002年   204篇
  2001年   416篇
  2000年   354篇
  1999年   294篇
  1998年   122篇
  1997年   103篇
  1996年   91篇
  1995年   87篇
  1994年   101篇
  1993年   90篇
  1992年   186篇
  1991年   224篇
  1990年   211篇
  1989年   225篇
  1988年   221篇
  1987年   234篇
  1986年   234篇
  1985年   211篇
  1984年   165篇
  1983年   161篇
  1982年   99篇
  1981年   131篇
  1980年   92篇
  1979年   156篇
  1978年   105篇
  1977年   99篇
  1976年   75篇
  1975年   114篇
  1974年   115篇
  1973年   113篇
  1972年   87篇
  1971年   79篇
排序方式: 共有9974条查询结果,搜索用时 15 毫秒
71.
72.
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   
73.
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   
74.
75.
Despite their rich theoretical and practical importance, criminologists have paid scant attention to the patterns of crime and the responses to crime during exceptional events. Throughout the world large-scale political, social, economic, cultural, and sporting events have become commonplace. Natural disasters such as blackouts, hurricanes, tornadoes, and tsunamis present similar opportunities. Such events often tax the capacities of jurisdictions to provide safety and security in response to the exceptional event, as well as to meet the “routine” public safety needs. This article examines “routine” crime as measured by calls for police service, official crime reports, and police arrests in Salt Lake City before, during, and after the 2002 Olympic Games. The analyses suggest that while a rather benign demographic among attendees and the presence of large numbers of social control agents might have been expected to decrease calls for police service for minor crime, it actually increased in Salt Lake during this period. The implications of these findings are considered for theories of routine activities, as well as systems capacity.  相似文献   
76.
Der Wald hat für uns ?konomische, ?kologische, soziale und kulturelle Bedeutung. Leider ist in letzter Zeit die kulturelle Bedeutung im Vergleich zur ?kologischen Bedeutung ins politische Abseits geraten. Nun will man das seit 1975 geltende Bundeswaldgesetz novellieren. Dabei sollte zur besseren Berücksichtigung des Denkmalschutzes bei der Definition des Waldes klargestellt werden, dass Park-, Garten- und Friedhofsanlagen kein Wald im Sinne des Bundeswaldgesetzes sind. Die Bedeutung des Waldbodens als Archiv der Natur- und Kulturgeschichte muss betont werden. Nicht zuletzt wegen der angestrebten Eintragung der Deutschen Buchenw?lder in die Liste des Erbes der Welt muss zum Ausdruck kommen, dass Deutschland die europ?ischen und internationalen Bemühungen zum Erhalt des Kultur- und Naturerbes wie das übereinkommen zum Schutz des Kultur- und Naturerbes der Welt von 1972 unterstützt.  相似文献   
77.
78.
In this article a practical case is described when gunshot directions and position of a victim's body at the moment of each shot were determined by natural simulation using an LG-78 laser (made in the form of a gun).  相似文献   
79.
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   
80.
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   
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