全文获取类型
收费全文 | 4179篇 |
免费 | 169篇 |
专业分类
各国政治 | 212篇 |
工人农民 | 114篇 |
世界政治 | 350篇 |
外交国际关系 | 690篇 |
法律 | 1640篇 |
中国共产党 | 2篇 |
中国政治 | 37篇 |
政治理论 | 1261篇 |
综合类 | 42篇 |
出版年
2021年 | 29篇 |
2020年 | 44篇 |
2019年 | 70篇 |
2018年 | 106篇 |
2017年 | 116篇 |
2016年 | 114篇 |
2015年 | 77篇 |
2014年 | 132篇 |
2013年 | 649篇 |
2012年 | 134篇 |
2011年 | 195篇 |
2010年 | 148篇 |
2009年 | 175篇 |
2008年 | 137篇 |
2007年 | 134篇 |
2006年 | 143篇 |
2005年 | 151篇 |
2004年 | 144篇 |
2003年 | 139篇 |
2002年 | 150篇 |
2001年 | 76篇 |
2000年 | 77篇 |
1999年 | 65篇 |
1998年 | 59篇 |
1997年 | 60篇 |
1996年 | 38篇 |
1995年 | 51篇 |
1994年 | 58篇 |
1993年 | 52篇 |
1992年 | 40篇 |
1991年 | 53篇 |
1990年 | 36篇 |
1989年 | 51篇 |
1988年 | 30篇 |
1987年 | 36篇 |
1986年 | 40篇 |
1985年 | 42篇 |
1984年 | 31篇 |
1983年 | 43篇 |
1982年 | 41篇 |
1981年 | 51篇 |
1980年 | 36篇 |
1979年 | 39篇 |
1978年 | 35篇 |
1977年 | 19篇 |
1976年 | 32篇 |
1975年 | 17篇 |
1974年 | 19篇 |
1973年 | 20篇 |
1969年 | 17篇 |
排序方式: 共有4348条查询结果,搜索用时 23 毫秒
111.
112.
James Edward David 《Intelligence & National Security》2017,32(6):768-781
This article examines the requirements for high and very high resolution photography of the USSR and other denied areas during the Cold War. It discusses the partial success of GAMBIT-1 and the much greater success of GAMBIT-3 beginning in 1966 in acquiring the former. The article reviews the development of the Manned Orbiting Laboratory (MOL) in the same period to collect very high resolution photography, the rationale for it, and the major technical and financial problems the program soon experienced. It then describes the debate beginning in 1968 over the value of this imagery considering the MOL’s costs and the growing success of GAMBIT-3, and these and the other factors that led President Richard Nixon to cancel the program the following year. 相似文献
113.
114.
T.J. Pempel Author Vitae 《Orbis》2011,55(2):255-273
To analyze how Japan's competing objectives and specific policies have been evolving and how they trade off in today's regional security situation, this article argues that shifting Japanese foreign and security policies in Northeast Asia can be understood as ongoing responses to tensions along three key axes. First Japan confronts a tension between bilateralism and multilateralism; second Japan's economic and security interests are often at odds, and third, Japan still struggles with the competing pulls exerted by Asia on the one hand and the West (most particularly the United States) on the other. 相似文献
115.
116.
In this note, new data concerning the agrarian structure of Bangladesh are employed to test the efficacy of ceilings on the size of landholdings as a means of making land available to the landless and the near landless. The data confirm that the numbers of potential claimants for land far exceeds the potential supply, even if ceilings on holdings were lowered from 100 standard bighas (331/3 acres) to 25 standard bighas (81/3 acres). 相似文献
117.
This article contends that it is time for the armed forces to revisit their schools, day rooms, wardrooms, squadron meeting places, headquarters, bases and posts to increase the level of awareness and the teaching of professional norms. 相似文献
118.
The transnational agrarian social movement Vía Campesina is campaigning to have the United Nations negotiate and implement a Declaration, and eventually an International Convention, on Peasants' Rights. This article analyzes the origins and demands of the campaign and the place of the claimed rights in international law. Peasant organizations hope to follow in the footsteps of indigenous peoples' movements that participated in the negotiations preceding the 2007 UN Declaration on the Rights of Indigenous Peoples. The peasants' rights campaign has succeeded in linking its demands to discussions of the right to food in the United Nations, where concern is growing over the approach of the 2015 target for realizing the Millennium Development Goals, in particular the halving of the numbers of people suffering from hunger. The campaign is likely to face stiff resistance from powerful UN member states, but could achieve substantial advances even if the path to a convention is difficult or never completed. 相似文献
119.
120.