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   13231篇
  免费   639篇
各国政治   656篇
工人农民   417篇
世界政治   972篇
外交国际关系   460篇
法律   8514篇
中国政治   69篇
政治理论   2683篇
综合类   99篇
  2020年   220篇
  2019年   259篇
  2018年   309篇
  2017年   311篇
  2016年   330篇
  2015年   290篇
  2014年   274篇
  2013年   1412篇
  2012年   280篇
  2011年   318篇
  2010年   330篇
  2009年   355篇
  2008年   309篇
  2007年   303篇
  2006年   327篇
  2005年   296篇
  2004年   304篇
  2003年   299篇
  2002年   273篇
  2001年   486篇
  2000年   412篇
  1999年   366篇
  1998年   191篇
  1997年   153篇
  1996年   136篇
  1995年   148篇
  1994年   155篇
  1993年   165篇
  1992年   257篇
  1991年   292篇
  1990年   259篇
  1989年   282篇
  1988年   237篇
  1987年   278篇
  1986年   258篇
  1985年   273篇
  1984年   231篇
  1983年   242篇
  1982年   175篇
  1981年   168篇
  1980年   144篇
  1979年   189篇
  1978年   136篇
  1977年   113篇
  1976年   108篇
  1975年   106篇
  1974年   117篇
  1973年   114篇
  1972年   94篇
  1969年   87篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
51.
52.
This article argues that, despite environmental issues climbing higher on the political agenda and considerable recent policy activity, rhetoric is not matched by reality in our efforts to manage the Australian environment. We integrate the imperatives emerging from the policy and sustainability literatures and from actual policy, with detailed work on wildlife conservation in Victoria's Central Highlands. Our analysis demonstrates that, rather than undertaking the more intensive policy and 'adaptive management' that is needed, governments are often doing less and may actually be 'taking their hands of their wheel'. Some public policy and administration implications of the emerging policy field of sustainability are illustrated.  相似文献   
53.
54.
Report of an unusual finding of bones on the shore of the Baltic Sea. Although the morphological findings appeared similar to a human foot skeleton, a quick identification as sea dog bone was possible.  相似文献   
55.
Misidentification syndromes have been studied from a variety of perspectives, including phenomenological, biological, and nosological approaches. More recently, misidentification syndromes have been studied from a psychiatric-legal perspective, especially with regards to the problem of dangerousness. Capgras syndrome and other syndromes of misidentification can lead to hostile mood and subsequent physical violence. Little attention has so far been devoted to children as the objects of the psychotic person's misidentification delusion(s). We provide a review of cases from the anglophonic literature that have children as the misidentified objects, add three new cases, and then discuss the relationship between misidentification and potential harm to these children.  相似文献   
56.
During the past decade the field of psychology of law has changed considerably. Accompanying the growth of research and practice, there has been an increase in offerings of courses in this field. The courses are offered at both undergraduate and graduate levels and cover a wide spectrum of interests. The types of courses currently being offered and the student samples enrolling in the courses are examined. In addition, a review of the major textbooks used in the courses is provided.  相似文献   
57.
A new solid-phase extraction procedure for the determination of cocaine and benzoylecgonine in amniotic fluid, using high flow co-polymeric sorbents is reported. The recoveries of cocaine and benzoylecgonine within the range 0.1-1 mg/l were 95.7% and 50.3%, respectively. The use of high-flow sorbents allowed the easy extraction of amniotic fluid regardless of sample viscosity or physical nature. The use of these solid-phase columns provided many advantages over the more commonly used solvent extraction, including an increase in extraction speed and efficiency, reduced operator time, reduced solvent use and disposal volumes and exceptional extract quality. Further, the determination of amniotic fluid obtained from pregnant cocaine users may provide important information about handling of cocaine by the fetus at various gestational ages. The procedure was successfully applied to amniotic fluid from suspected cocaine abusers.  相似文献   
58.
59.
60.
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