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   8568篇
  免费   268篇
  国内免费   1篇
各国政治   359篇
工人农民   250篇
世界政治   549篇
外交国际关系   402篇
法律   4536篇
中国共产党   129篇
中国政治   340篇
政治理论   1608篇
综合类   664篇
  2021年   67篇
  2020年   123篇
  2019年   110篇
  2018年   153篇
  2017年   160篇
  2016年   150篇
  2015年   137篇
  2014年   180篇
  2013年   808篇
  2012年   236篇
  2011年   289篇
  2010年   306篇
  2009年   321篇
  2008年   323篇
  2007年   334篇
  2006年   372篇
  2005年   297篇
  2004年   223篇
  2003年   245篇
  2002年   203篇
  2001年   273篇
  2000年   207篇
  1999年   173篇
  1998年   100篇
  1997年   93篇
  1996年   69篇
  1995年   79篇
  1994年   75篇
  1993年   82篇
  1992年   120篇
  1991年   151篇
  1990年   129篇
  1989年   145篇
  1988年   130篇
  1987年   150篇
  1986年   143篇
  1985年   146篇
  1984年   134篇
  1983年   138篇
  1982年   100篇
  1981年   95篇
  1980年   89篇
  1979年   94篇
  1978年   75篇
  1977年   58篇
  1976年   66篇
  1975年   61篇
  1974年   69篇
  1973年   67篇
  1969年   56篇
排序方式: 共有8837条查询结果,搜索用时 15 毫秒
41.
The population-adjusted rate of teenage suicide in King County, Washington, was reviewed for the 26 years from 1959 to 1984. For the entire period, the rate did not change significantly. An abrupt change did occur during the middle of this period, but, for reasons discussed in the text, this may well represent a change in procedures and philosophy of death certification rather than a real change in rate. Reasons for the apparent discrepancy with national statistics are discussed.  相似文献   
42.
法人越权是指法人的行为超出了章程规定的目的范围。其中如何平衡投资者、法人及交易相对人的利益是关键问题。研究英美法系的主要国家对法人越权问题的研究发展状况 ,可以对我国应采取的措施有些启示  相似文献   
43.
In the statistical interpretation of forensic glass evidence it is standard practice to make the assumption of homogeneity of the refractive index (RI) of the source glass, or of localized homogeneity. However, the work of Locke and Hayes showed that, for toughened windscreen glass, this assumption might not be true. This work is well cited, but there appears to have been little follow-on published research. Furthermore, the toughening process is something known to affect the refractive index, and is a process that float glass does not undergo. Float glass is a major component of casework in New Zealand and for that reason it would be interesting to know whether the findings of Locke and Hayes apply when dealing with float glass. In this paper we describe an experiment similar to that of Locke and Hayes, systematically examining the variation of RI in a pane of float window glass. It was found that, although there were no systematic differences in refractive index, there were observable differences across the pane.  相似文献   
44.
谢佑平  万毅 《法学论坛》2003,18(2):46-53
在现代刑事诉讼机制中 ,侦查职能是一种相对独立于控诉职能和审判职能的诉讼职能。从历史上看 ,独立的侦查职能的形成经历了一个分化、整合的发展过程。从内容上看 ,现代侦查职能包括制止犯罪、查明案情、保全证据与犯罪嫌疑人人身等功能。  相似文献   
45.
46.
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   
47.
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   
48.
49.
50.
This methodological paper presents the utility of survival analysis methods to provide age adjustment in the analysis of domestic violence data. These methods improve the estimation of lifetime probability of domestic violence, improve identification of patterns of first victimization over the lifespan, and provide methods of testing risk factors for first victimization while adjusting for the respondents' age. Most importantly, these methods allow a new investigation of recall bias. Results suggest that lifetime probability of abuse may have been substantially underestimated in previous studies because of problems in recall/disclosure encountered by middle-aged women.  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