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   16273篇
  免费   414篇
各国政治   943篇
工人农民   573篇
世界政治   1077篇
外交国际关系   702篇
法律   9616篇
中国共产党   1篇
中国政治   95篇
政治理论   3519篇
综合类   161篇
  2020年   162篇
  2019年   230篇
  2018年   308篇
  2017年   344篇
  2016年   370篇
  2015年   278篇
  2014年   355篇
  2013年   1852篇
  2012年   426篇
  2011年   408篇
  2010年   355篇
  2009年   373篇
  2008年   432篇
  2007年   434篇
  2006年   441篇
  2005年   353篇
  2004年   365篇
  2003年   382篇
  2002年   352篇
  2001年   591篇
  2000年   523篇
  1999年   453篇
  1998年   205篇
  1997年   210篇
  1996年   176篇
  1995年   176篇
  1994年   191篇
  1993年   184篇
  1992年   300篇
  1991年   341篇
  1990年   313篇
  1989年   330篇
  1988年   300篇
  1987年   320篇
  1986年   333篇
  1985年   295篇
  1984年   280篇
  1983年   260篇
  1982年   184篇
  1981年   183篇
  1980年   140篇
  1979年   235篇
  1978年   152篇
  1977年   138篇
  1976年   117篇
  1975年   153篇
  1974年   169篇
  1973年   163篇
  1972年   121篇
  1971年   113篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
51.
52.
53.
The Tax Reform Act of 1986 rewrote the federal income tax code, bringing it closer to policy professionals' vision of what constitutes an equitable and efficient income tax. Research on tax compliance suggests the law might have affected taxpayer compliance in three ways: by reducing opportunities to overstate deductions, by changing perceptions of fairness, and by altering tax liabilities. Changes in taxpayer perceptions, attitudes, and noncompliance intentions were examined in three bodies of survey data, each containing pre-and post-reform data from independent samples of the same population. The results show an improved normative climate for taxpayer compliance and point to both the feasibility and the importance of examining the effects of substantive tax policies on taxpayer perceptions, attitudes, and behavioral intentions.  相似文献   
54.
Lancaster  Thomas D. 《Publius》1997,27(4):115-134
Acknowledging Spain's diversity, this article assesses the impactof nationalism, regionalism, and other factors on public opinionabout the country's young democratic institutions. Utilizingsurvey data, the analysis focuses on national and regional variationsin public preferences for central state institutions and federalistor other designs for state-regional relations. It concludesthat a strong base of support exists for the current democraticsystem and the institutions through which it is implemented.Nevertheless, some doubts remain about the basic state structureof central-regional relations.  相似文献   
55.
The formation of adequate mental health systems within prisons has accelerated as a result of successful class action lawsuits. Our recent national survey questioned all state correctional departments about the existence of standards in each system, compliance with such standards, prevalence of class action lawsuits involving the issue of providing adequate mental health services for inmates, issues related to consent decrees, available mental health resources within the correctional system, and the administrative structure of the mental health system. Our purpose was to identify those factors correlated with certified class action lawsuits involving issues related to mental health services. Twenty-one states were involved in such litigation. Only the presence of psychiatric hospitals operated by the department of corrections correlated with the presence of certified class action lawsuits involving mental health services. Prison systems larger than 15,000 inmates were at higher risk for such litigation. Smaller systems having psychiatric hospitals run by the state mental health agency appeared to be at less risk for such litigation.  相似文献   
56.
The Green River Murder Investigation in King County, Washington, is currently the longest active serial murder investigation in U.S. history. During its course, over 26 separate scenes with from one to five victims each have been processed. The experience of the authors is presented in order to acquaint other agencies with techniques of outdoor scene processing that have evolved during recovery of remains from Green River and other skeletal cases.  相似文献   
57.
58.
Comparison of a suspected biter's dental arches with the patterned injury of a bite mark is especially difficult when the bite occurs in an anatomic location with a small radius of curvature or with complex or compound curves. The authors present two case reports in which human skin was used as a template for the reproduction of a bite. In one case the victim's skin was used; in the other, the skin of a anatomically similar person was used. The use of inked dental casts, photography, and transparent overlays significantly reduced the errors common to analysis of bite marks in these highly curved areas.  相似文献   
59.
In motorcycle accidents involving two riders, medicolegal identification of the driver is necessary when one or both riders die. It is particularly important in the latter case, because the survivor almost always insists that he or she was not driving. One characteristic injury that distinguishes the driver from the passenger is inguinal contusion-laceration (accompanied internally by pelvic fracture). This injury, caused by collision of the pelvis with the fuel tank, identifies the driver.  相似文献   
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