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   23927篇
  免费   785篇
  国内免费   5篇
各国政治   1214篇
工人农民   1007篇
世界政治   1721篇
外交国际关系   884篇
法律   14658篇
中国共产党   8篇
中国政治   291篇
政治理论   4681篇
综合类   253篇
  2020年   315篇
  2019年   386篇
  2018年   489篇
  2017年   584篇
  2016年   582篇
  2015年   447篇
  2014年   473篇
  2013年   2472篇
  2012年   645篇
  2011年   751篇
  2010年   578篇
  2009年   604篇
  2008年   686篇
  2007年   717篇
  2006年   694篇
  2005年   627篇
  2004年   626篇
  2003年   688篇
  2002年   560篇
  2001年   932篇
  2000年   808篇
  1999年   708篇
  1998年   376篇
  1997年   257篇
  1996年   296篇
  1995年   260篇
  1994年   294篇
  1993年   286篇
  1992年   451篇
  1991年   480篇
  1990年   459篇
  1989年   392篇
  1988年   453篇
  1987年   402篇
  1986年   446篇
  1985年   409篇
  1984年   360篇
  1983年   347篇
  1982年   249篇
  1981年   248篇
  1980年   198篇
  1979年   252篇
  1978年   191篇
  1977年   168篇
  1976年   157篇
  1975年   171篇
  1974年   175篇
  1973年   144篇
  1972年   148篇
  1969年   144篇
排序方式: 共有10000条查询结果,搜索用时 46 毫秒
41.
Archibald T. Strong, born in Melbourne, was the son of an Australian scholar who went to an academic post at Liverpool. The younger Strong received his secondary and tertiary education in England. There, he became proficient in modern European languages and literature. He initially planned a career in the law, but for health reasons returned to Australia to the Department of English at the University of Melbourne. Prior to the First World War, Strong became prominent in Melbourne literary circles and also a prolific commentator on world affairs. As an early member of the Round Table group in Australia, Strong assessed Imperial Germany as posing an existential threat to the British Empire and hence to Australia's security. The nation's future, he believed, lay in unwavering defence of the Empire. Strong evinced a distinct impatience with fellow citizens, especially on the socialist left, who failed, in his view, to understand the realities of Australia's position in the world and what was at stake in the Great War.  相似文献   
42.
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   
43.
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   
44.
45.
46.
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   
47.
48.
49.
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   
50.
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