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   16759篇
  免费   566篇
  国内免费   5篇
各国政治   686篇
工人农民   756篇
世界政治   1135篇
外交国际关系   550篇
法律   10729篇
中国共产党   6篇
中国政治   158篇
政治理论   3137篇
综合类   173篇
  2020年   226篇
  2019年   278篇
  2018年   340篇
  2017年   396篇
  2016年   406篇
  2015年   299篇
  2014年   317篇
  2013年   1551篇
  2012年   457篇
  2011年   489篇
  2010年   397篇
  2009年   418篇
  2008年   510篇
  2007年   547篇
  2006年   535篇
  2005年   484篇
  2004年   469篇
  2003年   500篇
  2002年   430篇
  2001年   677篇
  2000年   553篇
  1999年   485篇
  1998年   252篇
  1997年   176篇
  1996年   211篇
  1995年   177篇
  1994年   206篇
  1993年   203篇
  1992年   323篇
  1991年   357篇
  1990年   344篇
  1989年   286篇
  1988年   323篇
  1987年   275篇
  1986年   327篇
  1985年   288篇
  1984年   240篇
  1983年   220篇
  1982年   181篇
  1981年   195篇
  1980年   128篇
  1979年   180篇
  1978年   126篇
  1977年   108篇
  1976年   101篇
  1975年   126篇
  1974年   134篇
  1973年   103篇
  1972年   100篇
  1969年   101篇
排序方式: 共有10000条查询结果,搜索用时 78 毫秒
31.
Decomposition studies were conducted using two carcasses of domestic pigs, Sus scrofa L., 8.4 kg and 15.1 kg in weight, to determine the effects of carcass size on the rate of decomposition, composition of the arthropod fauna, and succession patterns. A total of 46 arthropod taxa were recovered during this study. No size-related differences were observed between carcasses with respect to composition of the arthropod fauna or patterns of succession. A greater number of arthropods were observed attracted to the 15.1-kg carcass, and the rate of decomposition observed was more rapid for the 15.1-kg carcass than for the 8.4-kg carcass. Internal temperatures of the 8.4-kg carcass were more directly related to external ambient temperatures during the fresh and bloated stages of decomposition. During the decay stage, both carcasses generated internal temperatures significantly above ambient temperatures. Following this stage, internal temperatures fell to approximate ambient temperatures during the postdecay and remains stages.  相似文献   
32.
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   
33.
34.
The DNA commission of the International Society of Forensic Genetics (ISFG) was convened at the 21st congress of the International Society for Forensic Genetics held between 13 and 17 September in the Azores, Portugal. The purpose of the group was to agree on guidelines to encourage best practice that can be universally applied to assist with mixture interpretation. In addition the commission was tasked to provide guidance on low copy number (LCN) reporting. Our discussions have highlighted a significant need for continuing education and research into this area. We have attempted to present a consensus from experts but to be practical we do not claim to have conveyed a clear vision in every respect in this difficult subject. For this reason, we propose to allow a period of time for feedback and reflection by the scientific community. Then the DNA commission will meet again to consider further recommendations.  相似文献   
35.
36.
Gambari  Ibrahim A. 《Publius》1991,21(4):113-124
Despite successive military regimes, state and local governmentsin Nigeria have been able to engage in limited forms of foreignaffairs activity. both directly abroad and indirectly throughinstitutions of the national government. The trend since independencehas been to make foreign affairs an exclusive responsibilityof the federal government. Generally, though, the military regimeshave been better able than the civilian governments to limitconstituent diplomacy. Under the Third Republic, therefore,state and local governments are likely to assert themselvessomewhat more in foreign affairs than they have recently.  相似文献   
37.
This paper argues that corruption is a product of self-aggrandizement; of unrealistically low remuneration which makes it impossible for public servants to live within their legitimate means; and of a closed political system which inevitably tends to exclude aggregated interests'. Corruption leads to loss of much needed revenue and human talent for development, distorts priorities for public policy, and shifts scarce resources away from the public interest. The mutual distrust that results among the different sections of society, and the growth of despondency in the general public, are incompatible with the requirements for successful public policy. The main theme running through the paper is that political instability, corruption and underdevelopment are mutually reinforcing. The paper finally outlines certain measures that need to be taken in order to clear the path for sustained growth and development.  相似文献   
38.
39.
40.
Legal context: Directive 2001/84/EC, on the resale right for the benefit ofthe author of an original work of art, introduced the harmonisationof artist's resale right within the EU (and subsequently withinthe EEA). Resale right already existed in many EU States, butthe Directive also required its creation in others (such asthe UK) to which it was previously unknown. The implementationof the Directive in the UK was accordingly a matter of somecontroversy. Key points: This article concentrates on the legal difficulties involvedin that implementation, viewed against the background of theUK Government's stated general policy on the transposition ofEU Directives. From several points of view, the rules laid downin the Directive called for elaboration or clarification, andin a number of cases such an approach was appropriate. In othercases, however, this turned out not to be appropriate. Practical significance: As a result, although in the main it was possible to transposethe Directive into a clear and workable set of domestic rules,a number of issues had to remain unresolved. Among the mostimportant were: whether works of ‘applied art’ shouldattract resale right, and the territorial scope of the transactionscovered by the right.  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