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   3987篇
  免费   140篇
各国政治   139篇
工人农民   128篇
世界政治   246篇
外交国际关系   133篇
法律   2782篇
中国政治   35篇
政治理论   650篇
综合类   14篇
  2021年   27篇
  2020年   50篇
  2019年   55篇
  2018年   85篇
  2017年   102篇
  2016年   90篇
  2015年   74篇
  2014年   87篇
  2013年   305篇
  2012年   95篇
  2011年   116篇
  2010年   89篇
  2009年   97篇
  2008年   121篇
  2007年   93篇
  2006年   114篇
  2005年   94篇
  2004年   104篇
  2003年   101篇
  2002年   96篇
  2001年   191篇
  2000年   143篇
  1999年   106篇
  1998年   40篇
  1997年   48篇
  1996年   37篇
  1995年   50篇
  1994年   46篇
  1993年   57篇
  1992年   82篇
  1991年   87篇
  1990年   81篇
  1989年   66篇
  1988年   84篇
  1987年   82篇
  1986年   99篇
  1985年   111篇
  1984年   87篇
  1983年   80篇
  1982年   38篇
  1981年   37篇
  1979年   37篇
  1978年   32篇
  1975年   31篇
  1974年   46篇
  1973年   25篇
  1972年   27篇
  1971年   31篇
  1970年   32篇
  1968年   32篇
排序方式: 共有4127条查询结果,搜索用时 15 毫秒
21.
22.
We report a case of rapid death from thrombotic thrombocytopaenic purpura (TTP) in a young pregnant lady who developed full blown symptoms soon after caesarean section. Extensive intramyocardial confluent haemorrhages and widespread microthrombi in heart, brain, adrenals and kidney were found at autopsy. Thrombotic thrombocytopaenic purpura is an uncommon condition, which carries a high fatality rate if untreated. Awareness of this syndrome together with its high risk of sudden death underlines the importance of rapid diagnosis and treatment.  相似文献   
23.
24.
Conclusion So can the Scots learn from Woolf? The answer must be in the affirmative, for his review points up similar problems to those we encounter here. There is no room for complacency in the civil justice system in Scotland, particularly in the field of Information Technology, where court systems and expertise are sadly lacking. It is clear that there is a need for a system of case management in all civil courts, targeted in particular areas or on particular cases, but only after a rigorous reappraisal of court timetabling; and that the public will lose confidence in a civil justice system which does not meet their needs for speedy and affordable decisions, perhaps by turning their backs on it and seeking means of Alternative Dispute Resolution. As for written pleadings, perhaps the most that can be said is that the case for their complete abolition is “not proven”, but that thestatus quo should not be maintained is beyond reasonable doubt. Sheriff of Lothian and Borders at Edinburgh; Member, Sheriff Court Rules Council.  相似文献   
25.
苏联解体的原因与后果   总被引:3,自引:1,他引:2  
1991年12月8日俄罗斯领导人Б.Н.叶利钦、乌克兰领导人Л.М.克拉夫丘克和白俄罗斯领导人С.С.舒什克维奇签署了别洛韦日协议,导致了苏联的解体;苏联解体是20世纪世界史上最重大的历史事件之一,这大概是大多数历史学家和政治学家对此的一致评价,而其他所有有关苏联解体的原因、后果等问题则一直是激烈争论的对象。  相似文献   
26.
Abstract. Palle Svensson in this issue of EJPR has objected to the characterisation of Danish voters made by Franklin and others who, in various publications, expounded the thesis that on issues of low salience, referendum votes tend to follow party lines. Svensson finds evidence that the Maastricht Treaty was not an issue of low salience to Danish voters in the ratification referendums conducted there, and gives other details of the evolution of public opinion regarding Europe that clarify the circumstances in which our thesis should apply. In the light of his arguments, this Comment presents a more nuanced version of the thesis that learns from the Danish case, and should be of greater utility than our earlier version in helping to interpret the role of government standing in referendum outcomes.  相似文献   
27.
Current research suggests that a husband's substance abuse is correlated with severity of physical abuse and the woman's decision to leave a violent situation. Often, only the battered woman's report of abuse is available. This study compares women's reports of their partners' substance use/abuse with their partners' report using a brief measure of polydrug and alcohol abuse, the Substance Abuse Subtle Screening Inventory (SASSI) and the Conflict Tactics Scale (CTS). Data were analyzed for 25 recovery couples and 25 nonrecovery couples. The correlations for all 50 couples between the male's reported use and the female's report of her partner's use on the SASSI and the CTS were significant on all but one of the CTS scales. They ranged on SASSI from .73 to .33 and from .31 to .06 on the CTS. This suggests that the SASSI and possibly the CTS could be used as valuable tools for assessing women's reports of their partner's substance use/abuse.  相似文献   
28.
29.
30.
In the forensic science laboratory, the recovery of spermatozoa from vaginal swabs, or vaginal cells from penile swabs, can help determine if sexual intercourse may have taken place. There are several methods used to recover spermatozoa and cells from the swabs before visualisation on a microscope slide and most of these methods use water. Phosphate buffered saline (PBS) is a non-toxic solution used in many biological laboratories. Unlike water, PBS prevents cells rupturing or shrivelling up due to osmosis. This study demonstrates that PBS can be used for the extraction of spermatozoa and cells from swabs and that PBS does not affect subsequent DNA profiling.  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