全文获取类型
收费全文 | 2261篇 |
免费 | 528篇 |
专业分类
各国政治 | 419篇 |
工人农民 | 64篇 |
世界政治 | 265篇 |
外交国际关系 | 148篇 |
法律 | 883篇 |
中国共产党 | 44篇 |
中国政治 | 144篇 |
政治理论 | 683篇 |
综合类 | 139篇 |
出版年
2022年 | 3篇 |
2021年 | 45篇 |
2020年 | 55篇 |
2019年 | 166篇 |
2018年 | 110篇 |
2017年 | 158篇 |
2016年 | 167篇 |
2015年 | 153篇 |
2014年 | 145篇 |
2013年 | 618篇 |
2012年 | 122篇 |
2011年 | 134篇 |
2010年 | 134篇 |
2009年 | 78篇 |
2008年 | 109篇 |
2007年 | 87篇 |
2006年 | 84篇 |
2005年 | 50篇 |
2004年 | 42篇 |
2003年 | 42篇 |
2002年 | 36篇 |
2001年 | 19篇 |
2000年 | 23篇 |
1999年 | 17篇 |
1998年 | 13篇 |
1997年 | 14篇 |
1996年 | 16篇 |
1995年 | 13篇 |
1994年 | 12篇 |
1993年 | 16篇 |
1992年 | 10篇 |
1991年 | 6篇 |
1990年 | 11篇 |
1989年 | 6篇 |
1988年 | 11篇 |
1987年 | 3篇 |
1986年 | 7篇 |
1985年 | 6篇 |
1984年 | 8篇 |
1983年 | 7篇 |
1982年 | 3篇 |
1981年 | 6篇 |
1980年 | 6篇 |
1979年 | 5篇 |
1978年 | 5篇 |
1977年 | 4篇 |
1976年 | 1篇 |
1975年 | 1篇 |
1974年 | 2篇 |
排序方式: 共有2789条查询结果,搜索用时 78 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.
从国家社科基金立项项目看法学研究状况——一种知识社会学的视角 总被引:6,自引:0,他引:6
通过对1993-2004年来国家社会科学基金立项的法学类项目类立项资助项目相关指标的分析,来展现我国目前法学学术生产格局的大致状况及其背后动因;并通过与经济学社科基金立项项目的比较以及对法学类社科基金立项项目在社科基金项目中所占比例等数据的分析,来呈视法学作为一门独立学科在整个人文社会科学界的地位变迁,以及这种变迁背后的权力———知识格局。 相似文献
3.
RONALD L. SIMONS LESLIE GORDON SIMONS YI‐FU CHEN GENE H. BRODY KUEI‐HSIU LIN 《犯罪学》2007,45(3):481-517
Past research has largely ignored the developmental changes within the child that account for the association between parenting and risk for delinquency. We used structural equation modeling and data from a longitudinal study of several hundred African‐American families to test the contentions of various theories regarding the sociocognitive and emotional factors that mediate the impact of parental behavior on a youth's risk for delinquency. Our findings largely supported the theories. The impact of monitoring/discipline was indirect through low self‐control and acceptance of deviant norms, whereas the effect of hostility/ rejection was indirect through low self‐control, hostile view of relationships, and acceptance of deviant norms. These two dimensions of parenting were no longer related either to affiliation with deviant peers or to conduct problems once the effects of these psychological characteristics were taken into account; the impact of these parenting practices was completely mediated by these four cognitive/affective variables. Contrary to expectation, however, these psychological factors did not mediate any of the relationship between caretaker involvement in antisocial behavior and child conduct problems. 相似文献
4.
为密切配合“中国-非洲-美国三方对话会”的成功召开,本刊特发表关于这次会议的综述性文章《和而不同助推非洲发展——“中国-非洲-美国三方对话会”综述》。文中综合介绍的观点和看法仅代表发言者本人。希望广大读者能对文中的观点进行甄别与研判,并从中得到有益的启示。 相似文献
5.
宁夏羊胃肠道线虫对现行驱虫药的抗药性调查 总被引:4,自引:2,他引:2
采用粪便虫卵减少试验对宁夏地区所属灵武、贺兰、盐池、吴忠、中宁、中卫、永宁和银川市郊8个县(市)的12个绵羊场、6个山羊场进行了丙硫苯咪唑和阿维菌素抗药性的随机调查。结果表明:在用丙硫苯咪唑调查的10个绵羊场和6个山羊场中,虫卵减少率在95%以下和95%的置信域下限在90%以下的有山羊场2个、绵羊场2个,证明对丙硫苯咪唑有抗药性;1个绵羊场和1个山羊场的虫卵减少率是96.3%、95.9%,但95%置信域的下限在90%以下,具有抗药性可疑;山羊群中丙硫苯咪唑的抗药性为33.3%,绵羊群为20.0%。用同样的方法调查了1个山羊场和5个绵羊场(其中有4个羊场曾执行了丙硫苯咪唑的试验),查出1个山羊场和1个绵羊场对阿维菌素具有抗药性可疑,其虫卵减少率分别为97.3%和95.5%,置信域下限在90%以下。揭示了宁夏地区羊消化道线虫对现行驱虫药的抗药状态,为今后防治提供了依据。 相似文献
6.
7.
8.
The partnership principle in EU cohesion policy was introduced in order to involve subnational authorities and interest organizations in policy formulation and implementation. In this article we examine how the member states have reacted to this call for a new way of making public policy. We argue that the multi‐level governance literature and the critics of the multi‐level governance framework have not examined implementation structures properly, but have focused on regional influence. We conduct a comparative analysis of the Dutch and Danish implementations of the European Social Fund and the European Regional Development Fund. Our findings show that when examining implementation structures it becomes clear that member states are in full control of the re‐allocation of EU funds. They show that Denmark and The Netherlands have been able to absorb EU cohesion policy within already existing national implementation structures of labour market policies and regional development. One central theoretical implication of our study is that the focus of studies of any fundamental re‐allocation of power resources in cohesion studies should comprise the entire network of implementation rather than the strategies of its individual component actors. 相似文献
9.
10.