全文获取类型
收费全文 | 12175篇 |
免费 | 604篇 |
专业分类
各国政治 | 593篇 |
工人农民 | 430篇 |
世界政治 | 868篇 |
外交国际关系 | 403篇 |
法律 | 7912篇 |
中国共产党 | 1篇 |
中国政治 | 68篇 |
政治理论 | 2428篇 |
综合类 | 76篇 |
出版年
2020年 | 215篇 |
2019年 | 246篇 |
2018年 | 274篇 |
2017年 | 323篇 |
2016年 | 322篇 |
2015年 | 294篇 |
2014年 | 272篇 |
2013年 | 1359篇 |
2012年 | 291篇 |
2011年 | 290篇 |
2010年 | 308篇 |
2009年 | 313篇 |
2008年 | 309篇 |
2007年 | 305篇 |
2006年 | 311篇 |
2005年 | 296篇 |
2004年 | 300篇 |
2003年 | 282篇 |
2002年 | 261篇 |
2001年 | 473篇 |
2000年 | 407篇 |
1999年 | 355篇 |
1998年 | 170篇 |
1997年 | 120篇 |
1996年 | 118篇 |
1995年 | 142篇 |
1994年 | 146篇 |
1993年 | 143篇 |
1992年 | 243篇 |
1991年 | 243篇 |
1990年 | 244篇 |
1989年 | 242篇 |
1988年 | 204篇 |
1987年 | 217篇 |
1986年 | 230篇 |
1985年 | 238篇 |
1984年 | 191篇 |
1983年 | 198篇 |
1982年 | 139篇 |
1981年 | 127篇 |
1980年 | 102篇 |
1979年 | 159篇 |
1978年 | 128篇 |
1977年 | 92篇 |
1976年 | 87篇 |
1975年 | 93篇 |
1974年 | 114篇 |
1973年 | 107篇 |
1972年 | 87篇 |
1969年 | 73篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
101.
The Federal Republic of Germany celebrated its fortieth anniversaryin May 1989. In spite of the devastation brought by World WarII, the division of the country between East and West, and theloss of one-fourth of its territory, the Bonn Republic was foundedunder more propitious circumstances than was its democraticpredecessa after World War I, the Weimar Republic. Togetherwith an "economic miracle" that brought about economic growthand a high standard of living. West Germany experienced a "politicalmirracle" that led to governmental stability and a system asdemocratic as any other in Europe. Federalism has contributedto this miracle, and, in contrast to the nineteenth century,is now identified closely with democracy in Germany. The articlescontained in this volume provide a broad overview of postwarfederalism in Germany, from its origins, organization, strengths,and weaknesses, to interpretations and assessments of currenttrends and developments. 相似文献
102.
A precise method for evaluating election schemes 总被引:1,自引:0,他引:1
Robert F. Bordley 《Public Choice》1985,46(2):113-123
A previously published paper evaluated election schemes under a wide variety of election circumstances. This paper improves upon the previous work by refining the measures used to rate the election schemes and increasing the statistical significance of those ratings. With these modifications, we can now draw some new conclusions:
- In general circumstances, the Borda System outperforms the Copeland System which outperforms Approval which outperforms Majority Rule.
- The Maximin Rule — strongly supported by Rawls's — turns out to be a reasonable election rule if the number of election alternatives is large relative to the number of voters.
- With two exceptions, all our election systems performed quite well given a society with highly correlated utilities.
- Given a polarized society, a serial dictatorship was better than every other election system except Borda.
103.
104.
F P Smith 《Journal of forensic sciences》1987,32(4):1098-1102
During the course of routine hospital surgical procedures, three patients lapsed into hypoxic cyanosis. Two expired immediately, another after four days of coma. Investigation of the hospital's central liquid oxygen tank revealed that it had been refilled recently and was labelled both "oxygen" and "argon." Mass spectrometric analysis of gas sampled from the questioned tank revealed a predominance of argon. A discussion of the sampling technique, method of analysis, role of the criminalist, and causes of this accident is presented. 相似文献
105.
One of the important resources to any state, such as California, is the technology that is available from the many federally operated and/or funded laboratories within its borders. In this age of technology a state needs to take advantage of applications of modern technology and innovative exploitation of human and natural resources. This article illuminates the importance of the Federal Government research laboratories. Many examples are presented to support the argument that the Federal Government research laboratories can be and often are substantial contributors to the storehouse of technology that finds its way to the private sector and public sector. Several types of technology transfer are discussed, i.e. primary technology, secondary applications, mission related, technical assistance and cooperative. In addition the article discusses the structure and logic of the Federal Laboratory Consortium for Technology Transfer (FLC). The legislaltion that has helped to make the FLC effective is discussed. Included in the discussion are insights of how the FLC operates and how the private sector and public sector may use the FLC in order to locate process, product and service technology. 相似文献
106.
Four unrelated hanging deaths involving young white males, all in enlisted status in the United States military, are presented. Taken in a military context, one scene served as a suicide note equivalent with the unmistakable message of extreme defiance toward military regulations. In two cases, the elaborate attire of the decedents could have lead to the misclassification of the manner of death if investigative information had not been considered. Extensive background investigation and review of medical records in the fourth case disclosed that the victim had an eight- to ten-year history of compressing his neck to cause unconsciousness. He left an extensive suicide note in which he concluded that "hanging would be good." Each case has certain unique features, as a group, the cases all demonstrate a continuum from obvious suicide to cases where the manner of death is, at first, equivocal. 相似文献
107.
108.
109.
R C Challener S B Rosenberg 《The American journal of forensic medicine and pathology》1986,7(3):249-251
Discharge of a shotgun with a shotgun casing in its muzzle as a "dust cover" produced a pattern of injuries suggestive of combined intermediate- and distant-range wounds. 相似文献
110.