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   20058篇
  免费   627篇
  国内免费   5篇
各国政治   849篇
工人农民   942篇
世界政治   1292篇
外交国际关系   735篇
法律   12521篇
中国共产党   6篇
中国政治   200篇
政治理论   3922篇
综合类   223篇
  2021年   118篇
  2020年   250篇
  2019年   330篇
  2018年   490篇
  2017年   485篇
  2016年   561篇
  2015年   383篇
  2014年   411篇
  2013年   1863篇
  2012年   659篇
  2011年   629篇
  2010年   462篇
  2009年   503篇
  2008年   582篇
  2007年   634篇
  2006年   611篇
  2005年   880篇
  2004年   622篇
  2003年   579篇
  2002年   504篇
  2001年   723篇
  2000年   588篇
  1999年   521篇
  1998年   281篇
  1997年   197篇
  1996年   235篇
  1995年   205篇
  1994年   234篇
  1993年   233篇
  1992年   363篇
  1991年   389篇
  1990年   373篇
  1989年   336篇
  1988年   357篇
  1987年   312篇
  1986年   363篇
  1985年   325篇
  1984年   271篇
  1983年   256篇
  1982年   205篇
  1981年   220篇
  1980年   150篇
  1979年   191篇
  1978年   144篇
  1977年   122篇
  1975年   149篇
  1974年   163篇
  1973年   130篇
  1972年   117篇
  1969年   109篇
排序方式: 共有10000条查询结果,搜索用时 0 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.
New York State experimented with replacing their litigation-oriented system for achieving toxic dump site cleanup with one promising to lower transaction costs through alternative dispute resolution. Our analysis of outcomes is informed by three generations of implementation work focusing on (1) the motivations and incentives shaping individual behavior, (2) the larger organizational and political factors associated with variation across cases, and (3) the generic properties of policy implements. This mosaic approach to explanation produces, we believe, a more lifelike picture of use to policy makers for understanding the dynamic and interrelated nature of their choices.  相似文献   
39.
40.
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