全文获取类型
收费全文 | 8252篇 |
免费 | 307篇 |
专业分类
各国政治 | 438篇 |
工人农民 | 279篇 |
世界政治 | 688篇 |
外交国际关系 | 383篇 |
法律 | 4394篇 |
中国共产党 | 2篇 |
中国政治 | 65篇 |
政治理论 | 2237篇 |
综合类 | 73篇 |
出版年
2020年 | 103篇 |
2019年 | 139篇 |
2018年 | 184篇 |
2017年 | 218篇 |
2016年 | 214篇 |
2015年 | 171篇 |
2014年 | 177篇 |
2013年 | 1077篇 |
2012年 | 203篇 |
2011年 | 225篇 |
2010年 | 204篇 |
2009年 | 210篇 |
2008年 | 238篇 |
2007年 | 227篇 |
2006年 | 234篇 |
2005年 | 235篇 |
2004年 | 229篇 |
2003年 | 214篇 |
2002年 | 221篇 |
2001年 | 259篇 |
2000年 | 246篇 |
1999年 | 192篇 |
1998年 | 126篇 |
1997年 | 110篇 |
1996年 | 80篇 |
1995年 | 105篇 |
1994年 | 107篇 |
1993年 | 100篇 |
1992年 | 131篇 |
1991年 | 140篇 |
1990年 | 138篇 |
1989年 | 133篇 |
1988年 | 112篇 |
1987年 | 120篇 |
1986年 | 145篇 |
1985年 | 149篇 |
1984年 | 104篇 |
1983年 | 117篇 |
1982年 | 90篇 |
1981年 | 94篇 |
1980年 | 79篇 |
1979年 | 85篇 |
1978年 | 86篇 |
1977年 | 51篇 |
1976年 | 66篇 |
1975年 | 60篇 |
1974年 | 79篇 |
1973年 | 73篇 |
1972年 | 53篇 |
1969年 | 57篇 |
排序方式: 共有8559条查询结果,搜索用时 15 毫秒
991.
992.
993.
Study of dental root surfaces prompted the authors to add to the routine odontogram 28 more maxillary surfaces and 22 mandibular surfaces, this making a total of 210 diagnostic signs. Employment of amplified panoramic roentgenography permitted the authors to detect specific features of the dental cavity, root canals, periodontal fissure structure, the presence of caries and its complications, inflammatory and systemic involvement, injury to the jaws and teeth. Visual examination of dental status and application of panoramic roentgenography will help improve forensic medical personal identification. 相似文献
994.
James Kurth Author Vitae 《Orbis》2006,50(3):541-557
Fundamental transformations of identity within Europe have historically resulted in great wars, which in turn resulted in fundamental transformations of identity. This essay discusses, first, four great periods of war in Europe and the succession of identities they produced, and then the new war that Islamist terrorists, and Islamism more generally, have brought to Europe and the West. It considers the inherent weaknesses and failures of the now-dominant Western ideology and identity, liberalism, in dealing with this new war, and concludes with a consideration of the once-dominant Christian identity in Europe. That identity, much more than liberalism, would have strengthened Europe in its current war with Islamism. 相似文献
995.
A F Fartushny? 《Sudebno-meditsinskaia ekspertiza》1992,35(1):28-31
The author presents experimental data and suggests a method for extraction of aromatic substances from the blood, urine, lavage water, stomach and its contents, liver and kidneys. The extract is dissolved in 96% ethanol and the aromatic substances are detected in reactions with hydrochloric acid, Marki's reagent, 2,4-dinitrophenylhydrazine, diazotized o-dianisidine, phthivazide, chromotropic acid by UV spectrophotometry, thin-layer and gas-liquid chromatography. The sensitivity of the method is 0.1-0.5 mg %. 相似文献
996.
Steven F. Messner 《Journal of Quantitative Criminology》1992,8(2):155-173
This paper examines the common practice in cross-national research on homicide of using crime estimates for a multiyear period based on a smaller number of years than theoretically desired because of erratic data reporting for selected nations. Correlations between hypothetical baseline rates and various alternative estimates are examined to simulate the potential consequences of using temporally incomplete data rather than data for the full multiyear period of interest. The results reveal that this common practice is likely to be highly acceptable for certain national samples but less acceptable for others. The paper concludes with suggestions for dealing with potentially problematic cases. 相似文献
997.
998.
999.
The idea that the president should manage intergovernmentalrelationships gained credence and became more feasible as theExecutive Office of the President developed managerial capacities.Executive-centered intergovernmental management gained considerablesupport in the Kestnbaum Commission's deliberations, developedrapidly in response to Great Society coordination problems,and culminated during the Nixon administration. This perspectiverelies on the use of hierarchical management techniques to producean orderly, rational federal system. Its decline began duringthe Carter administration and accelerated during the Reaganyears. It is doubtful that this perspective will again be influential,given the erosion of professional support for and waning presidentialinterest in comprehensive, federal intergovernmental management. 相似文献
1000.
Robert F. Dernberger 《East Asia》1988,7(1):3-21
His publications includeChina’s Development Experience in Comparative Perspective, and, with Allen Whiting,China’s Future. This is a revised version of a paper presented at a conference on “Problems of Peace, Security and Economic Cooperation
in Asia and the Pacific” June 1987, in Beijing, P.R.C. The conference was co-sponsored by the Institute for Sino-Soviet Studies
and the China Institute of Contemporary International Relations, Beijing, P.R.C. 相似文献