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   13754篇
  免费   375篇
各国政治   600篇
工人农民   419篇
世界政治   919篇
外交国际关系   487篇
法律   8940篇
中国共产党   1篇
中国政治   64篇
政治理论   2573篇
综合类   126篇
  2020年   150篇
  2019年   185篇
  2018年   246篇
  2017年   285篇
  2016年   304篇
  2015年   214篇
  2014年   269篇
  2013年   1387篇
  2012年   357篇
  2011年   367篇
  2010年   300篇
  2009年   305篇
  2008年   361篇
  2007年   372篇
  2006年   377篇
  2005年   311篇
  2004年   320篇
  2003年   334篇
  2002年   310篇
  2001年   575篇
  2000年   532篇
  1999年   411篇
  1998年   162篇
  1997年   164篇
  1996年   150篇
  1995年   142篇
  1994年   159篇
  1993年   139篇
  1992年   284篇
  1991年   306篇
  1990年   278篇
  1989年   308篇
  1988年   270篇
  1987年   277篇
  1986年   281篇
  1985年   265篇
  1984年   230篇
  1983年   250篇
  1982年   164篇
  1981年   160篇
  1980年   124篇
  1979年   198篇
  1978年   130篇
  1977年   122篇
  1976年   107篇
  1975年   109篇
  1974年   131篇
  1973年   124篇
  1972年   103篇
  1971年   101篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
81.
82.
In a free market world economy now characterized by a strong trend towards integrated economic areas dominated by North America, Western Europe and the Pacific, effective cooperation is the key to sustained success. Mr. Lautenberg is a diplomat, whose career has been strongly oriented on bilateral and multilateral economic matters (Poland, FRG; GATT, EFTA, CSCE). Between 1970 and 1974, Mr. Lautenberg, who holds a degree in political sciences from the University of Lausanne, led various research programs at the General Staff of the Department of Defense.  相似文献   
83.
This study uses a structured vignette procedure to assess competency to make treatment decisions in two groups of adolescents, one at risk for institutional placement and the other a matched community sample. Scores on Factual Understanding (the ability to recall facts), Inferential Understanding (the ability to make inferences about those facts), and Reasoning (the ability to weigh risks and benefits of various treatment options and to make choices based on that reasoning) were compared. Results showed that while at-risk adolescents and their community, counterparts did not differ in their factual and inferential understanding abilities, the at-risk adolescents did significantly less well than the community adolescents in reasoning. This difference could not be fully explained by differences in verbal IQ. Girls, no matter what their risk status, scored higher than boys on the Reasoning scale. Implications for legal policies concerning adolescents are discussed.  相似文献   
84.
Compulsory competitive tendering (CCT) has been an important instrument of Conservative government economic policy since 1979. Its effectiveness in generating cost-effective services depends on competition to supply the service in question.
The NHS domestic market is large and, prior to the introduction of CCT, promised to be profitable for contractors. Many contract cleaners with office cleaning experience entered. In the event the costs of entry were heavy, and the profit margins of established firms were reduced. When contracts have been awarded to firms, they tended to be to those with a track record. Many firms therefore withdrew; and the few that remained have profit margins in the NHS little different from those found elsewhere. Of more than by firms with a serious interest in entry, probably no more than a handful can have come out of the experience in net profit in the first seven years.
The experience of CCT in the market for NHS domestic services has shown that a degree of competition in the market can be achieved, arguably because of the presence of direct service organizations. Competition for this market, on the other hand, can be limited by the high costs of entry.  相似文献   
85.
Analyzes the results of forensic medical examinations of the corpses after hanging. The findings were as follows: two strangulation grooves are seen on the corpse's neck after hanging, that are similar to the grooves seen after strangulation with a loop and subsequent hanging of a corpse; the presence of bruises on the neck, along with the strangulation grooves, is indicative of a strangulation made by the hands, whereas half-moon shaped bruises may be self-inflicted during hanging.  相似文献   
86.
87.
Recently criminologists have begun to explore the importance of disaggregating frequency measures of self-reported delinquency into the separate decisions of initiation and continuation. Given that labeling makes predictions concerning continuation, the purpose of this paper is twofold. The first is to test the ability of an informal labeling model to predict the decision to continue delinquent behavior once it is initiated. The second purpose is to address the broader question of whether disaggregation matters. The findings support the idea that the informal labeling model is predictive of the decision to continue delinquent behavior. The findings also suggest that, at least for a measure of general delinquency, there are some differences to be found by choosing the appropriate sample and form of the dependent variable.  相似文献   
88.
89.
90.
Social scientists have theorized about the cycle of domestic violence in family abuse. Little research has addressed dating violence as a consequence to the experience of domestic violence by children. This article deals with the self-reported experience of dating violence by high school students from abusive and nonabusive households. A survey was conducted of 1,353 students in a rural area of North Dakota. Results indicated that students from abusive households showed significantly higher incidence of dating violence than those from homes where no abuse was evident. However, less than one in five of the students from abusive home reported dating violence, providing little support for the cycle of violence hypothesis. Students from abusive homes viewed violence as negatively as students from nonabusive homes. Thus, while there are significant differences between the two groups, there are also important similarities. Although there is apparently a greater risk of dating violence among students who have experienced violence at home, these data do not support the idea of an inescapable pattern of violence among adolescents who have experienced violence themselves.  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