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   9570篇
  免费   212篇
各国政治   477篇
工人农民   252篇
世界政治   605篇
外交国际关系   342篇
法律   6265篇
中国共产党   1篇
中国政治   40篇
政治理论   1691篇
综合类   109篇
  2020年   92篇
  2019年   103篇
  2018年   143篇
  2017年   162篇
  2016年   189篇
  2015年   132篇
  2014年   163篇
  2013年   929篇
  2012年   253篇
  2011年   255篇
  2010年   188篇
  2009年   195篇
  2008年   241篇
  2007年   234篇
  2006年   249篇
  2005年   212篇
  2004年   212篇
  2003年   212篇
  2002年   218篇
  2001年   443篇
  2000年   387篇
  1999年   282篇
  1998年   104篇
  1997年   120篇
  1996年   95篇
  1995年   97篇
  1994年   112篇
  1993年   100篇
  1992年   211篇
  1991年   234篇
  1990年   212篇
  1989年   244篇
  1988年   219篇
  1987年   206篇
  1986年   230篇
  1985年   183篇
  1984年   153篇
  1983年   167篇
  1982年   93篇
  1981年   99篇
  1980年   72篇
  1979年   137篇
  1978年   81篇
  1977年   87篇
  1976年   75篇
  1975年   96篇
  1974年   108篇
  1973年   102篇
  1972年   91篇
  1971年   80篇
排序方式: 共有9782条查询结果,搜索用时 15 毫秒
11.
12.
A method has been developed on reverse phase high performance liquid chromatography for simultaneous determination of methyl, ethyl and isopropyl alcohols under refractive index detection using pure water as the mobile phase. A good separation has been achieved between these alcohols. Detector response was linear with a detection limit of 5 mg/100 ml. Recovery studies were performed by adding known amounts of methyl and ethyl alcohols to blood, lung and liver within the range 80–90%. The reproducibility of the results was always >90%. The quantitative distribution of methyl alcohol in postmortem body tissues and fluids has been reported in three cases of poisoning.  相似文献   
13.
This review chronicles the characteristics of deliberate and accidental mass poisonings that occurred in World Wars I and II, in Bhopal, and in other historical cases up to and including modern wars. It also considers approaches to the investigation of such cases from the medicolegal as well as general standpoints.  相似文献   
14.
Data on 63 cases of subcapsular spleen lesions are analyzed. Circumstances of trauma infliction period of the 2-nd stage of spleen capsule rupture, morphological types of subcapsular spleen lesions, microscopic changes in different posttraumatic periods are presented.  相似文献   
15.
16.
He is author of many works about social class, including The Protestant Establishment Revisitedand Philadelphia Gentlemen,both published by Transaction Publishers.  相似文献   
17.
18.
Despite some understanding of general correlates and possible antecedents to intimate partner violence (IPV) within the Christian community, the impact of religious and spiritual factors tends to be confounded by other factors and is often misjudged. Archival data from Wave III of the National Longitudinal Study of Adolescent Health (Add Health) were used to examine the impact of nine religious and spiritual factors on the probability of IPV perpetration by males, aged 18 to 26, who nominally classified themselves as Catholic, Protestant, or Christian. Logistic regression results indicated that IPV perpetration could not be adequately predicted from the religious and spiritual factors. Given the geographic breadth and the size of the Add Health sample, no finding of a predictive model for Christian male-perpetrated IPV challenges the paradigm that religious and spiritual factors should be overtly addressed in faith-based batterers’ programs targeting young adult males.  相似文献   
19.
20.
Although there has been speculation regarding the pervasiveness and nature of judicial decisions regarding life-sustaining medical treatment (LSMT), no attempt has been made to empirically assess their prevalence or the issues they address. An exploratory study utilizing a mail survey of a nationwide random sample (N = 905) of state trial court judges was conducted to provide initial information regarding this decision-making process. Twenty-two percent of the responding judges had heard at least one LSMT case, and judicial review did not appear endemic to particular states. The number of judges hearing LSMT cases dropped from 1975 to 1981 but has increased since then. Three major issues predominate: patient competency, appointment of a surrogate decisionmaker, and resolution of the ultimate issue of forgoing LSMT. Relatively few cases either contested a prior directive's validity or involved imposing sanctions for instituting or forgoing LSMT. Although subject to different interpretations, the results suggest the courts are having a significant impact on certain aspects of the LSMT decision-making process. However, the infrequency with which any one judge is called upon to make an LSMT decision causes concern about the judiciary's ability to respond in a timely and appropriate manner. With their potential for a profound effect on the actions of health care providers, greater attention to this decision-making process is warranted.  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