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   18016篇
  免费   1378篇
各国政治   780篇
工人农民   616篇
世界政治   1373篇
外交国际关系   551篇
法律   12457篇
中国共产党   1篇
中国政治   123篇
政治理论   3351篇
综合类   142篇
  2020年   407篇
  2019年   426篇
  2018年   519篇
  2017年   566篇
  2016年   578篇
  2015年   523篇
  2014年   513篇
  2013年   1911篇
  2012年   408篇
  2011年   510篇
  2010年   650篇
  2009年   620篇
  2008年   432篇
  2007年   403篇
  2006年   528篇
  2005年   392篇
  2004年   379篇
  2003年   378篇
  2002年   343篇
  2001年   626篇
  2000年   505篇
  1999年   439篇
  1998年   248篇
  1997年   220篇
  1996年   176篇
  1995年   203篇
  1994年   221篇
  1993年   201篇
  1992年   322篇
  1991年   376篇
  1990年   328篇
  1989年   357篇
  1988年   322篇
  1987年   311篇
  1986年   325篇
  1985年   362篇
  1984年   346篇
  1983年   316篇
  1982年   243篇
  1981年   224篇
  1980年   215篇
  1979年   233篇
  1978年   161篇
  1977年   130篇
  1976年   131篇
  1975年   128篇
  1974年   141篇
  1973年   129篇
  1972年   107篇
  1971年   98篇
排序方式: 共有10000条查询结果,搜索用时 109 毫秒
191.
The presence of smeared or unsmeared ink on the skin resulting from the writing process has been observed in a number of suicide victims who have left suicide notes. The authors report a case of a palmar "cutaneous ink sign" and discuss its forensic science import.  相似文献   
192.
Atypical entrance gunshot wounds may be produced by deflected or ricocheting bullets. One special type of atypical entrance wound involves abrasion of the skin at a site that is remote from the point of dermal penetration. These remote abrasions, termed "tumbling abrasions," are produced by bullets that tumble after impact with an intermediate target. Three cases of tumbling abrasions are presented.  相似文献   
193.
194.
The Healthcare Educational and Research Foundation (HERF) in Minneapolis undertook a two-year research project to study the effects of health maintenance organizations (HMOs) and competition on the hospital industry in Minneapolis/St. Paul. This article summarizes HERF's major findings surrounding three key questions: (1) do the HMOs in Minneapolis/St. Paul use fewer hospital resources relative to conventional payers?; (2) do recent overall community trends in inpatient use suggest evidence of hospital utilization-reducing effects attributable to HMOs?; and (3) given the highly visible competitive process among Minneapolis/St. Paul providers, do hospital cost and revenue data suggest any evidence of cost-containment? The findings (based on data through 1982) indicate that for comparable patients, Twin Cities HMOs appear to use fewer medical care resources per hospitalized patient. There was, however, no clear evidence of community-wide, utilization-reducing effects directly attributable to the "competitive effect" of HMO introduction and development in the market. In addition, there was no empirical evidence that HMOs (which had enrolled 25 percent of the consumer market by 1982), or other large buyers of inpatient services, have selected hospitals on the basis of price as hypothesized by competition advocates.  相似文献   
195.
A large number of corpses transferred to Athens and the Piraeus Morgue from abroad have been examined in second autopsies. Lack of information, mistakes in data, useless effort, and disappointment on the part of the forensic pathologists because of the lack of new information revealed are characteristic of these cases. With some exceptions, the second autopsy provided no news for the anxious relatives, who, for the most part, had been prompted by their attorneys or other "well-meaning friends" to demand a second autopsy on the corpses of their loved one (who generally died on board ship abroad). Nevertheless, in 10 of 59 cases, the cause of death was completely different from the determined in the autopsy performed abroad or assumed from the information available. This fact ensures that any corpse from abroad undergoes a careful and thorough examination on its arrival in Greece.  相似文献   
196.
Much attention has been given of late to the erosion of the "employment-at-will" doctrine. Exceptions to this doctrine began to emerge when courts held that at-will employees could sue if their termination violated public policy. The at-will doctrine was further eroded by court rulings that a contract requiring good cause in order to terminate could be inferred from employee handbooks, company personnel policies, and circumstances of employment. As the initial flood of wrongful termination lawsuits now reaches the appellate level, some guidance on the standards employers must observe can be drawn from court decisions. The authors examine these decisions as well as the legislative reform being proposed in response to them.  相似文献   
197.
The writings of Sir Bernard Spilsbury: Part I   总被引:1,自引:0,他引:1  
This is a two-part historical feature, highlighting the rare writings of Sir Bernard Spilsbury, the recognized leader of British forensic medicine in the first half of the 20th century. Parts I and II were compiled from the publications of the Medicolegal Society of Great Britain, where Sir Bernard Spilsbury served as President in 1933. Although his profile was presented previously in this Journal (vol. 2, no. 2, 179-182, 1981), it is felt that much of Sir Bernard Spilsbury's personality comes out in his writings and recordings of his speeches in the Medicolegal Society publications. Part I includes his lecture on "The Medico-Legal Significance of Bruises," presented before the Medicolegal Society in 1938; and a short case report read before the Medicolegal Society in 1924. The subject of the case report was sudden death from inhibition. Part II will contain two papers from the Medicolegal Society publications.  相似文献   
198.
Physicians who defraud and abuse medical benefit programs provide a unique group of lawbreakers for scientific study. They could be considered to epitomize white collar criminals given their exceedingly high socioeconomic status and power as a professional group. Using official reports and documents, as well as interviews with enforcement and program personnel at both state and federal levels, this study examines the problem of physician fraud and abuse in Medicare and Medicaid. Major areas relevant to understanding this phenomenon and its control are presented and policy implications of present knowledge in the area are discussed.  相似文献   
199.
200.
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