首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   33573篇
  免费   1412篇
各国政治   1359篇
工人农民   2037篇
世界政治   2119篇
外交国际关系   1110篇
法律   21457篇
中国共产党   2篇
中国政治   152篇
政治理论   6622篇
综合类   127篇
  2021年   167篇
  2020年   521篇
  2019年   585篇
  2018年   1902篇
  2017年   1893篇
  2016年   1806篇
  2015年   734篇
  2014年   742篇
  2013年   2717篇
  2012年   840篇
  2011年   1588篇
  2010年   1610篇
  2009年   1261篇
  2008年   1411篇
  2007年   1343篇
  2006年   755篇
  2005年   711篇
  2004年   820篇
  2003年   700篇
  2002年   644篇
  2001年   1014篇
  2000年   931篇
  1999年   704篇
  1998年   404篇
  1997年   321篇
  1996年   317篇
  1995年   313篇
  1994年   316篇
  1993年   297篇
  1992年   466篇
  1991年   480篇
  1990年   462篇
  1989年   454篇
  1988年   469篇
  1987年   420篇
  1986年   490篇
  1985年   476篇
  1984年   387篇
  1983年   365篇
  1982年   272篇
  1981年   258篇
  1980年   214篇
  1979年   328篇
  1978年   188篇
  1977年   167篇
  1976年   136篇
  1975年   130篇
  1974年   185篇
  1973年   139篇
  1972年   132篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
41.
42.
The failure of forestry to contribute to poverty reduction in Central America is due to public policies which inhibit its profitability. Absence of public regulation of harvesting and competing subsidies to agriculture keep forestry stumpage prices artificially low. This encourages destruction of the forest resource, which damages both the environment and the potential to reduce poverty. A comparison of Costa Rica and Honduras reveals two dissimilar approaches toward forest policy. While Costa Rica attempts to raise producer and grower stumpage prices by tax credits, soft loans and differential species fees, Honduras enforces price ceilings and uses centralized authority to control forest production and export. Both countries exhibit weaknesses in the management control cycle of programming, budgeting, implementing and evaluating their forest policies. Yet the Costa Rican approach has increased stumpage prices already, which bodes well for their forest sector. By contrast, the major beneficiary of Honduran forest policy has been COHDEFOR, the state enterprise responsible for forestry management, controlling production, and running its national system of agroforestry cooperatives. Despite greater public authority and resources than the Costa Rican forest service (DGF), the Honduran forest policy is not likely to increase producer profitability or reduce poverty in the near future.  相似文献   
43.
Provincial governments in the Netherlands have only one general tax at their disposal. However, it has become an insufficient source of revenue for this level of government in the Dutch system. To increase the revenue raising capacity of the provincial governments, thirteen broad-based general tax proposals not used at the local level were examined. The objective was to find a fair and equitable tax that could easily be collected and would result in fl. 200 million in additional revenue for the provincial governments.  相似文献   
44.
45.
本文分析了英国近来的一些案例,介绍了英国在采取非诉方法解决争议方面的最新发展,强调了法院在一些案件中的态度.  相似文献   
46.
  East Asia, including Northeast Asia and Southeast Asia, has developed tightly-linked production/distribution networks through globalizing corporate activities. The vertical chain of production in East Asia has been even more sophisticated than economic integration in East Europe or Latin America. However, the political environment of East Asia for trade and investment has been far from borderless. The integration effort at the policy level has been very much limited so far, due to the historical background as well as geopolitics surrounding East Asia. The Asian currency/financial crisis provided these countries a historical turning point. After the burst of the crisis, East Asians realized that they have to take care of themselves in their difficulties, not depending on outside forces. A natural choice for them was to step into the realm of regionalism. In 1998, Japan and Korea officially announced that they would discard the long-lasting GATT/WTO-only approach and adapt the multi-layered approach, including both regionalism and multilateralism. The ultimate goal of regionalism would be a region-wide integration including ASEAN+3. As a steppingstone, Japan signed the Japan-Singapore Economic Partnership Agreement (JSEPA) in January 2002. In a parallel move, the ASEAN and China Leaders announced in November 2001 the establishment of an ASEAN-China Free Trade Area (ACFTA) within 10 years. This article will follow up the most recent advancement of regional institutional building in East Asia with the emphasis on peculiar characteristics of economic integration in the region and discuss its implications for Asia-Europe relations. This paper is heavily drawn from Kimura (2002, 2003).  相似文献   
47.
In a case of first impression, the Trademark Trial and AppealBoard of the US Patent and Trademark Office has held that theflavour orange is not registrable for use with quick-dissolvingantidepressant tablets and pills.  相似文献   
48.
This paper links the policy context regarding S&T parks to the objectives and characteristics of the established parks and incubators in a relatively small, converging European country. S&T parks and incubators in Greece during the past decade and a half have gradually shifted in terms of ownership and management from university/research institute to the private sector and in terms of financing from public to private funds, also involving the provision of seed capital and access to venture capital. This gradual shift toward more private engagement has created a variety of models out of which, it is hoped, successful innovative companies will emerge in larger numbers than in the past.
  相似文献   
49.
50.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号