全文获取类型
收费全文 | 10022篇 |
免费 | 513篇 |
专业分类
各国政治 | 640篇 |
工人农民 | 278篇 |
世界政治 | 601篇 |
外交国际关系 | 393篇 |
法律 | 6465篇 |
中国共产党 | 39篇 |
中国政治 | 306篇 |
政治理论 | 1647篇 |
综合类 | 166篇 |
出版年
2021年 | 61篇 |
2020年 | 201篇 |
2019年 | 226篇 |
2018年 | 297篇 |
2017年 | 308篇 |
2016年 | 331篇 |
2015年 | 295篇 |
2014年 | 242篇 |
2013年 | 999篇 |
2012年 | 302篇 |
2011年 | 386篇 |
2010年 | 369篇 |
2009年 | 394篇 |
2008年 | 336篇 |
2007年 | 332篇 |
2006年 | 372篇 |
2005年 | 264篇 |
2004年 | 272篇 |
2003年 | 252篇 |
2002年 | 241篇 |
2001年 | 375篇 |
2000年 | 320篇 |
1999年 | 258篇 |
1998年 | 116篇 |
1997年 | 79篇 |
1996年 | 84篇 |
1995年 | 89篇 |
1994年 | 98篇 |
1993年 | 90篇 |
1992年 | 159篇 |
1991年 | 172篇 |
1990年 | 151篇 |
1989年 | 163篇 |
1988年 | 134篇 |
1987年 | 150篇 |
1986年 | 135篇 |
1985年 | 144篇 |
1984年 | 105篇 |
1983年 | 126篇 |
1982年 | 88篇 |
1981年 | 88篇 |
1980年 | 57篇 |
1979年 | 114篇 |
1978年 | 74篇 |
1977年 | 60篇 |
1976年 | 51篇 |
1975年 | 48篇 |
1974年 | 56篇 |
1973年 | 57篇 |
1972年 | 44篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
Wu‐ting Tsai Ph.D. Chia‐Yun Chang B.S. Chia‐I Hu M.S. 《Journal of forensic sciences》2019,64(4):1230-1233
Fatal fall from a height initiated with a swinging motion on the sagittal plane of the victim's body is examined. Method of analytical mechanics is adopted to establish the functional relations between the swinging angle of the body and the force needed to sustain the body until release, and the amount of the horizontal displacement that would occur after release. The analysis is applied to support an expert opinion presented in a criminal court in which two accused were convicted of murder for dropping a female victim from a bridge. The results indicate that it is unlikely for the body to locate as recorded by the police investigation report in the case. This study demonstrates that a straightforward mechanical analysis can be utilized to examine uncommon falling scenarios. 相似文献
2.
3.
Kevin B. Smith 《American journal of political science》2006,50(4):1013-1022
What drives policymakers to put the interests of others above their own? If human nature is inherently selfish, it makes sense to institutionalize incentives that counter decision makers' temptations to use their positions to benefit themselves over others. A growing literature rooted in evolutionary theories of human behavior, however, suggests that humans, under certain circumstances, have inherent predispositions towards “representational altruism,” i.e., to make an authoritative decision to benefit another at one's own expense. Drawing on Hibbing and Alford's conception of the wary cooperator, a theoretical case is made for such behavioral expectations, which are confirmed in a series of original laboratory experiments. 相似文献
4.
There is widespread concern that higher education is being compromised by being turned into a ‘commodity’ to be ‘consumed’. This article represents an initial attempt to explore the trends in both the UK and US, and considers how the law has responded to them. It argues, however, that there is an important distinction to be drawn between ‘commodification’ and ‘consumerism’. Education has always been a commodity to be bought and sold; the true danger lies in the move to a ‘rights-based’ culture where students (and politicians) see education merely as something to be ‘consumed’ rather than as an activity in which to participate. Whilst the law seems thus far to have been something of a bulwark against this movement, it remains an open question as to whether this will continue to be the case if HEIs do not themselves act more proactively in challenging this damaging view of higher education. 相似文献
5.
VGH München 《Natur und Recht》2006,28(6):382-383
Keine Zusammenfassung 相似文献
6.
VG München 《Natur und Recht》2006,28(8):528-530
Keine Zusammenfassung 相似文献
7.
VGH München 《Natur und Recht》2006,28(4):269-269
Keine Zusammenfassung 相似文献
8.
9.
OVG Lüneburg 《Natur und Recht》2006,28(8):524-527
Keine Zusammenfassung 相似文献
10.
OVG Lüneburg 《Natur und Recht》2006,28(9):599-600
Keine Zusammenfassung 相似文献