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   7158篇
  免费   230篇
各国政治   405篇
工人农民   223篇
世界政治   582篇
外交国际关系   269篇
法律   4128篇
中国政治   40篇
政治理论   1667篇
综合类   74篇
  2020年   82篇
  2019年   109篇
  2018年   152篇
  2017年   145篇
  2016年   159篇
  2015年   112篇
  2014年   129篇
  2013年   805篇
  2012年   155篇
  2011年   171篇
  2010年   157篇
  2009年   166篇
  2008年   170篇
  2007年   173篇
  2006年   184篇
  2005年   163篇
  2004年   160篇
  2003年   176篇
  2002年   168篇
  2001年   225篇
  2000年   192篇
  1999年   171篇
  1998年   107篇
  1997年   101篇
  1996年   76篇
  1995年   81篇
  1994年   83篇
  1993年   85篇
  1992年   124篇
  1991年   156篇
  1990年   137篇
  1989年   150篇
  1988年   134篇
  1987年   154篇
  1986年   139篇
  1985年   156篇
  1984年   142篇
  1983年   142篇
  1982年   102篇
  1981年   96篇
  1980年   92篇
  1979年   96篇
  1978年   79篇
  1977年   58篇
  1976年   67篇
  1975年   62篇
  1974年   70篇
  1973年   67篇
  1972年   56篇
  1969年   56篇
排序方式: 共有7388条查询结果,搜索用时 31 毫秒
21.
The rare event of a corpse immersed in glacier ice becoming exposed on a glacier surface is closely connected with the glaciological conditions at the scene and the site of the accident. Provided that the time since death is known, certain questions relative to the circumstances of a mountain accident can only be answered by considering glaciological aspects. How the scene of an accident can be reconstructed by inference from the site of discovery is discussed by means of three exemplary cases that occurred on Tyrolean glaciers (Austria) during the past 40 years: (1) Two corpses were discovered close above the equilibrium line in the accumulation area after 25 years. The two victims had fallen down a rock face after the breaking off of a cornice and had come to rest in the uppermost part of the accumulation area. (2) A victim was discovered in the lower ablation area 8 years after falling down a crevasse in the middle part of the ablation area. (3) A female alpinist was discovered at the very end of the glacier after 29 years; it was concluded that the accident must have happened in the accumulation area.  相似文献   
22.
Newspaper juries     
This article reports on a field experiment on the effect of media information on people’s attitudes towards the justice system. For the duration of a year a Dutch local newspaper took small groups of readers, called ‘newspaper jurors’, to court sessions of criminal cases and subsequently reported on their experiences and perceptions. Using a quasi-experimental design, we examined whether an attitude change in the general reader population of this particular local newspaper occurred as a result of the jury’s newspaper reports. Findings show that, after the treatment interval of 1 year, no attitude change in the general reader population could be identified that was absent in the control group.  相似文献   
23.
24.
25.
North American research on the policing of ‘domestic violence’ has been very influential among policy makers in Great Britain. In particular, research which purports to verify the deterrence value of arrest has prompted the establishment of over thirty domestic violence units in London and similar initiatives elsewhere in Britain. The paper will outline the nature of the traditional police response to ‘family violence’ in London and the nature of the experimental innovations. Changes in police practice with regard to this type of violence will be put in the context of the organizational constraints and possibilities of policing. Finally, changing police responses to domestic violence will be evaluated in terms of the debate over the possibility of using the state or its organs to achieve social change.  相似文献   
26.
27.
A fatality following ingestion of the drug baclofen (Lioresal) is described. Baclofen was identified in urine by gas chromatography/mass spectrometry. After derivatization with trinitrobenzene sulfonic acid, baclofen was quantitated in serum and urine by high-performance liquid chromatography. The concentration of baclofen was 17 mg/L in serum and 760 mg/L in urine collected approximately 12 h after the overdose. To our knowledge, this is only the second reported fatality involving a baclofen overdose. The previous case did not include quantitation of baclofen in any biological fluid.  相似文献   
28.
29.
30.
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