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   21113篇
  免费   1316篇
各国政治   838篇
工人农民   997篇
世界政治   1409篇
外交国际关系   698篇
法律   14561篇
中国共产党   2篇
中国政治   125篇
政治理论   3689篇
综合类   110篇
  2023年   105篇
  2021年   107篇
  2020年   467篇
  2019年   505篇
  2018年   646篇
  2017年   657篇
  2016年   743篇
  2015年   552篇
  2014年   608篇
  2013年   2155篇
  2012年   563篇
  2011年   608篇
  2010年   606篇
  2009年   656篇
  2008年   605篇
  2007年   598篇
  2006年   617篇
  2005年   500篇
  2004年   514篇
  2003年   438篇
  2002年   473篇
  2001年   811篇
  2000年   747篇
  1999年   596篇
  1998年   287篇
  1997年   223篇
  1996年   236篇
  1995年   235篇
  1994年   224篇
  1993年   219篇
  1992年   387篇
  1991年   391篇
  1990年   395篇
  1989年   370篇
  1988年   414篇
  1987年   362篇
  1986年   396篇
  1985年   404篇
  1984年   318篇
  1983年   284篇
  1982年   219篇
  1981年   192篇
  1980年   180篇
  1979年   264篇
  1978年   145篇
  1977年   112篇
  1976年   104篇
  1975年   120篇
  1974年   156篇
  1973年   104篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
81.
82.
Retention of offender DNA samples serves an important quality assurance role for forensic DNA laboratories. Consistent with the principles of confidentiality underlying the establishment of the state and national DNA databases, safeguards are in place to protect the DNA samples from unauthorized use.  相似文献   
83.
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   
84.
The study presents a method for the demonstration of esophageal varices at autopsy by gastroesophageal phlebography. The veins visible on the radiographs were controlled and evaluated by studying the gross appearance of sections of the esophagus at the level of the varicose veins and by histologic examination of the sections. The phlebography was found to be useful in estimating the varicose and normal veins of the esophagus. The study indicates further that the degree of varicosity is not always proportional to the severity of cirrhosis of the liver, and there may be varicose esophageal veins in patients with liver or heart disorders without hepatic cirrhosis.  相似文献   
85.
This study examined the nature of police response to domestic violence incidents with a focus on the identification of areas of police intervention that female victims of domestic abuse find “most” helpful and “least” helpful. The first part of the study was based on the analysis of a random sample of incident reports of domestic abuse cases recorded in 2000 and 2001. These reports were examined to obtain information about the characteristics of domestic abuse victims and summary information about the incidents of domestic abuse offenses. The second stage of the research study involved a telephone survey conducted with a random sample of fifty female domestic abuse victims who called the police. The study examined female victims' perceptions of how the police responded to the domestic abuse incidents, how helpful or not so helpful victims found the police to be when they responded to their calls, and how their cases were handled by the legal system.  相似文献   
86.
The purpose of this study was to examine the relationship between job demands, job resources, and burnout, and to examine if burnout could predict both work and health-related outcomes among police officers. The participants were 223 Norwegian police officers, and data were collected using a questionnaire. The study was part of a national survey of both health care and non-health care professions. The overall level of burnout was low among police officers compared to other occupational groups tested in Norway. Both job demands and job resources were related to burnout, especially work-family pressure was an important predictor for all of the three burnout dimensions. Burnout predicted individual outcomes, such as psychosomatic complaints and satisfaction with life, as well as work outcomes, such as job satisfaction, intention to quit, and organizational commitment. Suggestions for potential interventions to reduce burnout and negative individual and organizational consequences are presented.  相似文献   
87.
88.
89.
This paper investigates how North Korean behaviour towards boththe United States and South Korea is influenced by the popularityof the American President. The study applies theories relatingto strategic conflict avoidance and signalling to suggest thatthe American President is able to demonstrate a willingnessto use force when he is unpopular and as such is better ableto coerce Pyongyang. Using a time-series model, I demonstratethat the North Koreans become more cooperative towards the UnitedStates in response to decreases in presidential popularity andincreasing levels of US inflation. However, the study also showsthat the North Koreans do not alter their behaviour towardsthe South Koreans in response to low American President Popularityratings. The research, therefore, suggests that the North Koreansbelieve that the United States would be unable to launch a diversionaryattack in response to North Korean behaviour towards the South.This study provides a clear support for the strategic avoidanceof conflict hypothesis and suggests that the American Presidentsare best able to coerce North Korea when they are unpopularat home. Received for publication August 31, 2005. Accepted for publication December 21, 2005.  相似文献   
90.
THE BOOKSHELF     
Books reviewed in this article:
G. Andrew Benjamin and Jackie Gollan, Family Evaluation in Custody Litigation: Reducing Risks of Ethical Infractions and Malpractice .  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