全文获取类型
收费全文 | 21904篇 |
免费 | 1079篇 |
专业分类
各国政治 | 1326篇 |
工人农民 | 883篇 |
世界政治 | 1661篇 |
外交国际关系 | 806篇 |
法律 | 13034篇 |
中国共产党 | 3篇 |
中国政治 | 170篇 |
政治理论 | 4912篇 |
综合类 | 188篇 |
出版年
2021年 | 138篇 |
2020年 | 288篇 |
2019年 | 478篇 |
2018年 | 578篇 |
2017年 | 611篇 |
2016年 | 611篇 |
2015年 | 446篇 |
2014年 | 498篇 |
2013年 | 2702篇 |
2012年 | 576篇 |
2011年 | 615篇 |
2010年 | 551篇 |
2009年 | 526篇 |
2008年 | 629篇 |
2007年 | 572篇 |
2006年 | 594篇 |
2005年 | 506篇 |
2004年 | 543篇 |
2003年 | 493篇 |
2002年 | 472篇 |
2001年 | 733篇 |
2000年 | 676篇 |
1999年 | 519篇 |
1998年 | 291篇 |
1997年 | 298篇 |
1996年 | 237篇 |
1995年 | 232篇 |
1994年 | 223篇 |
1993年 | 239篇 |
1992年 | 393篇 |
1991年 | 444篇 |
1990年 | 416篇 |
1989年 | 424篇 |
1988年 | 386篇 |
1987年 | 418篇 |
1986年 | 392篇 |
1985年 | 396篇 |
1984年 | 372篇 |
1983年 | 377篇 |
1982年 | 251篇 |
1981年 | 249篇 |
1980年 | 196篇 |
1979年 | 263篇 |
1978年 | 190篇 |
1977年 | 154篇 |
1976年 | 143篇 |
1975年 | 148篇 |
1974年 | 170篇 |
1973年 | 178篇 |
1972年 | 145篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
131.
This paper examines the inner workings of Chinese human smuggling organizations. Contrary to widely held conceptions about Chinese organized crime, most alien smugglers are otherwise ordinary citizens whose familial networks and fortuitous social contacts have enabled them to pool resources to transport human cargoes around the world. They come from diverse backgrounds and form temporary alliances to carry out smuggling operations. With the exception of a shared commitment to making money, little holds them together. The smuggling organizations mostly resemble ad hoc task forces and are assembled for specific operations. These organizations have clear divisions of labor with limited hierarchical structures. We discuss the theoretical implications of their unique organizational characteristics. 相似文献
132.
V. K. Borooah 《Public Choice》1991,72(1):1-12
An important problem in the political economy of the UK is that the disparity of unemployment rates across its regions is much more marked than the corresponding dispersion of wage rates. One possibility is that this is due to the attitude of trade unions to their members in different regions. If unions wish to preserve parity between members in different regions then they will value wage equality between regions over and above wage levels. This may then persuade them to overlook inter-regional productivity differences in setting wages. The price that low-efficiency regions will then pay for this desire for wage equality is higher unemployment rates.Much of the research for this paper was carried out while the author was visiting the Trade Union Economics Research Institute (FIEF), Stockholm in 1989. An earlier version of this paper was presented at a seminar there and the author is gratefully to Villy Bergstrom, Paul Chen, Douglas Hibbs, Eva Udden-Jondal and other institute members for several useful comments. Comments from Kevin Lee, John Spencer and an anonymous referee have also substantially improved the paper. The usual disclaimer applies. 相似文献
133.
Charles B. Fleming Richard F. Catalano Monica L. Oxford Tracy W. Harachi 《Journal of Quantitative Criminology》2002,18(4):423-439
The social development model (SDM) is a theory of behavior that has proven useful in explaining the etiology of delinquency, violence, and substance use among adolescents as well as early antisocial behavior among pre-adolescents. A further test of the model is its generalizability across population groups. A section of the SDM representing prosocial influences in the etiology of problem behavior was compared for boys and girls and for children from low- and non low-income families using three waves of child, parent and teacher survey data on a sample of 851 elementary school students. Multiple group structural equation modeling was used to assess differences across groups in both measurement of model constructs and hypothesized structural paths between constructs. The results indicate overall similarity in the reliability of measurement models and validity of structural models. 相似文献
134.
135.
136.
137.
138.
A dissecting intramural haematoma of the coronary artery is an infrequent cause of sudden and unexpected death. Most cases are women and in a significant number of these women, the haematoma occurred at term to 80 days postpartum. Because the intimal rupture and communication with the lumen were not found in most of the cases, the site of rupture has been considered to be a vasa vasorum. The authors report on a case of one woman who was at a later postpartum period (106 days). The microscopic finding of the dissected coronary artery revealed two intimal tears in a section. The case showed that the dissecting intramural haematoma of the coronary artery is caused not only by the rupture of the vasa vasorum but also by the rupture of the intima. 相似文献
139.
Distinctive blunt force injuries caused by a crescent wrench. 总被引:1,自引:0,他引:1
140.