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   12687篇
  免费   440篇
各国政治   677篇
工人农民   494篇
世界政治   921篇
外交国际关系   480篇
法律   7279篇
中国共产党   3篇
中国政治   74篇
政治理论   3086篇
综合类   113篇
  2020年   153篇
  2019年   195篇
  2018年   294篇
  2017年   323篇
  2016年   348篇
  2015年   232篇
  2014年   229篇
  2013年   1554篇
  2012年   339篇
  2011年   314篇
  2010年   298篇
  2009年   328篇
  2008年   367篇
  2007年   349篇
  2006年   377篇
  2005年   343篇
  2004年   343篇
  2003年   310篇
  2002年   317篇
  2001年   334篇
  2000年   348篇
  1999年   260篇
  1998年   209篇
  1997年   187篇
  1996年   149篇
  1995年   164篇
  1994年   158篇
  1993年   175篇
  1992年   250篇
  1991年   249篇
  1990年   230篇
  1989年   243篇
  1988年   224篇
  1987年   246篇
  1986年   233篇
  1985年   232篇
  1984年   215篇
  1983年   212篇
  1982年   147篇
  1981年   138篇
  1980年   114篇
  1979年   146篇
  1978年   108篇
  1977年   108篇
  1976年   85篇
  1975年   79篇
  1974年   83篇
  1973年   97篇
  1972年   77篇
  1968年   68篇
排序方式: 共有10000条查询结果,搜索用时 87 毫秒
991.
Immigration policies implemented in the early 1950s by the Menzies government embraced several principles defined by the postwar Labor government, trying to accommodate employers, unions, veterans and ethnic voters within a framework of international considerations. The issue of admitting Germans severely tested the government's ability to reconcile these divergent interests. While anti-communism and established ethnic stereotypes were the undercurrents driving the debate, the practical demands of the Australian labour force, on the one hand, and the memories of the Second World War, on the other, also assumed much prominence in the public rhetoric. This study suggests that despite the existence of a common set of assumptions, both sides in the debate constructed opposing viewpoints to exploit them for partisan purposes. Groups or individuals whose concerns indeed focused on the advantages and disadvantages of admitting German migrants were shunted aside in this essentially political battle.  相似文献   
992.
993.
994.
995.
996.
Although scholars focused on Soviet–American relations during the Cold War, the greatest number of conflicts for the U.S. occurred in the Third World, and most of these were with revolutionary states. Could U.S. policies toward the new revolutionary states have prevented the almost universal collapse in relations? Two dominant explanations for this breakdown are (1) American hostility toward revolutionary change and (2) Stephen Walt's variant of the spiral model. Using the comparative case approach and selecting "hard cases," this article disputes these explanations and offers a new theory based on the externalization of domestic conflict in the revolutionary states. Given their ideological goals, the radicals externalized their domestic conflicts with the moderates, who had transnational ties with the U.S., by fomenting tensions with Washington. To demonstrate that this theory can be generalized, this article varies the dependent variable and shows through a critical case that its lack of conflict can best be explained by the absence of the conditions that lead to externalization. The foreign policies of both the U.S. and revolutionary states are explained by classical realism as opposed to Walt's structural realism, which fails to account for the foreign policies of Third World states.  相似文献   
997.
998.
Genetic marker analysis is a powerful tool for solving paternity-related problems when the putative father is missing. This report describes the first time this approach was employed in Chile to solve such a problem. In the case presented, the alleged father was missing as a result of the political detentions that took place in Chile during 1973. It was not possible to obtain any biological sample from him because he was missing. Thus, the case was resolved by means of genetic marker analysis of the alleged father's close relatives.  相似文献   
999.
In order to use genetic loci in forensic identity testing, some population data are needed. This paper presents a report of allele frequency data for the loci HUMTH01, HUMTPOX and HUMVWA in a population sample from Northern Spain. No deviation from the Hardy-Weinberg equilibrium was detected in any of the three markers investigated and there was no evidence of association between the alleles of these loci. Statistical analysis was also carried out to obtain some parameters of medicolegal interest and comparative studies were carried out with other populations studied to date for these five loci. The Asturian sample does not differ substantially from other Caucasian and Spanish populations.  相似文献   
1000.
No reliable data are available on cases of lethal child abuse (by active force) in the area of the former German Democratic Republic. In a multicenter study we therefore examined the police and court records for such cases occurring in the period 1 January 1985 to 2 October 1990 in the entire area of the former German Democratic Republic. RESULTS: The study center received information on 39 cases of lethal child abuse which correspond to approximately 7 cases per year. However, a low percentage of undetected crimes which cannot be determined more precisely has to be taken into consideration. Almost 40% of the victims were younger than 1 year, 73% of the victims showed indications of repeated ill-treatment. The effects caused by using direct blunt forces, against the head in particular, were by far the most frequent causes of death. The male contact person (the victim's father, brother or stepfather as well as the life companion of the child's mother in particular) killed the child in most of the cases. As far as it is known, 37% of the male/female offenders suffered from chronic alcoholism; 32% of the male/female offenders were under the influence of alcohol when the crime happened. 83% of the male/female offenders who were found guilty made a confession shortly after the crime had happened or during the interrogations. Almost all the male/female offenders were sentenced to prison (the duration of the imprisonment varied between one year and for life). Due to the considerably lower section rate compared to the one in the German Democratic Republic, it is to fear that each second fatal child abuse is not detected in the new federal states.  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