全文获取类型
收费全文 | 6291篇 |
免费 | 166篇 |
专业分类
各国政治 | 328篇 |
工人农民 | 180篇 |
世界政治 | 440篇 |
外交国际关系 | 286篇 |
法律 | 3759篇 |
中国政治 | 29篇 |
政治理论 | 1324篇 |
综合类 | 111篇 |
出版年
2021年 | 37篇 |
2020年 | 78篇 |
2019年 | 88篇 |
2018年 | 150篇 |
2017年 | 125篇 |
2016年 | 164篇 |
2015年 | 84篇 |
2014年 | 125篇 |
2013年 | 688篇 |
2012年 | 183篇 |
2011年 | 228篇 |
2010年 | 151篇 |
2009年 | 142篇 |
2008年 | 201篇 |
2007年 | 236篇 |
2006年 | 182篇 |
2005年 | 188篇 |
2004年 | 215篇 |
2003年 | 187篇 |
2002年 | 191篇 |
2001年 | 222篇 |
2000年 | 207篇 |
1999年 | 161篇 |
1998年 | 66篇 |
1997年 | 63篇 |
1996年 | 65篇 |
1995年 | 61篇 |
1994年 | 56篇 |
1993年 | 62篇 |
1992年 | 105篇 |
1991年 | 130篇 |
1990年 | 130篇 |
1989年 | 132篇 |
1988年 | 129篇 |
1987年 | 108篇 |
1986年 | 98篇 |
1985年 | 102篇 |
1984年 | 91篇 |
1983年 | 80篇 |
1982年 | 54篇 |
1981年 | 57篇 |
1980年 | 41篇 |
1979年 | 43篇 |
1978年 | 47篇 |
1975年 | 40篇 |
1974年 | 49篇 |
1973年 | 44篇 |
1972年 | 39篇 |
1971年 | 40篇 |
1970年 | 43篇 |
排序方式: 共有6457条查询结果,搜索用时 15 毫秒
21.
22.
23.
Paul A. Papayoanou 《国际研究季刊》1997,41(1):113-140
To account for variance in great powers responses to threats and the implications for the peacefulness of the international system since the late nineteenth century, this article elucidates a theory which refines and synthesizes economic liberal perspectives and realist balance of power theory. I argue that different patterns and levels of economic interdependence in the great power system generate societal-based economic constraints on, or incentives for, state leaders of status quo powers hoping to mobilize economic resources and political support to oppose perceived threats. This mobilization process influences strongly the preferences of status quo powers, other states beliefs about those preferences, and the interpretation of signals in balance of power politics. In this way, economic ties influence the strategies great powers pursue. Firm balancing policies conducive to peace in the international system are most likely, I then hypothesize, when there are extensive economic ties among status quo powers and few or no such links between them and perceived threatening powers. When economic interdependence is not significant between status quo powers or if status quo powers have strong economic links with threatening powers, weaker balancing postures and conciliatory policies by status quo powers, and aggression by aspiring revisionist powers, are more likely. I then illustrate how these hypotheses explain the development of the Franco-Russian alliance of the 1890s and its effectiveness as a deterrent of Germany up to 1905, British ambivalence toward Germany from 1906 to the First World War, the weakness of British, French, Soviet, and American behavior toward Germany in the 1930s and World War II, and the American and European responses to the Soviet threat, including the NATO alliance, and the "long peace" of the post-1945 era. 相似文献
24.
25.
26.
27.
28.
William V. Pelfrey Jr. 《Journal of criminal justice》2007,35(3):313
Although law enforcement agencies across the nation have assumed part of the responsibility in the fight against terrorism, significant confusion exists as to the role of local law enforcement. While some agencies have taken steps towards terrorism prevention, little data has been collected on which agencies have taken the greatest steps, how those agencies have changed, and how other agencies should direct their activity. This case study of law enforcement census data from a single state considered variations in terrorism preparedness and predictors of preparedness. Agency size, presence of funding, and other variables significantly predict levels of terrorism preparedness. Important policy implications such as the distribution of funding and which agencies should be working towards terrorism preparedness are discussed. 相似文献
29.
30.