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   5724篇
  免费   61篇
各国政治   286篇
工人农民   209篇
世界政治   389篇
外交国际关系   207篇
法律   3451篇
中国共产党   1篇
中国政治   44篇
政治理论   1162篇
综合类   36篇
  2024年   47篇
  2023年   158篇
  2021年   53篇
  2020年   69篇
  2019年   76篇
  2018年   94篇
  2017年   110篇
  2016年   118篇
  2015年   106篇
  2014年   96篇
  2013年   588篇
  2012年   146篇
  2011年   144篇
  2010年   128篇
  2009年   130篇
  2008年   162篇
  2007年   147篇
  2006年   142篇
  2005年   138篇
  2004年   151篇
  2003年   139篇
  2002年   122篇
  2001年   190篇
  2000年   182篇
  1999年   138篇
  1998年   86篇
  1997年   64篇
  1996年   51篇
  1995年   70篇
  1994年   59篇
  1993年   56篇
  1992年   95篇
  1991年   99篇
  1990年   112篇
  1989年   95篇
  1988年   90篇
  1987年   91篇
  1986年   111篇
  1985年   116篇
  1984年   83篇
  1983年   87篇
  1982年   55篇
  1981年   52篇
  1980年   53篇
  1979年   55篇
  1978年   63篇
  1975年   47篇
  1974年   65篇
  1973年   60篇
  1972年   47篇
排序方式: 共有5785条查询结果,搜索用时 0 毫秒
21.
22.
23.
24.
25.
26.
This article will trace the history and effects of the PPI from the time of its original concept by the FDA in the early 1970's to its current status. It will also address the response to this FDA initiative by the industry, medical community and consumer groups. Initiatives in other countries and future issues will also be discussed.  相似文献   
27.
28.
The 1994 International Conference on Population and Development (ICPD) opened the dawn of a new era in discourse over population. A newfound consensus was reached between North and South which was not there during the two previous world population conferences in Bucharest and Mexico. While consensus was reached at the 1994 ICPD on the need for action, however, debate over population is far from settled. Causes of population growth, the links between population growth and economic development, and environmental degradation remain controversial topics. The authors analyze the basis of the ICPD consensus at the local, national, and global levels. They also compare the development discourse to the political discourse over population. Both discourses emphasize different aspects of a far more complex reality. The question is which discourse to choose as a basis for drawing policy recommendations. The emerging view on the way to Cairo was that consensus would be achieved on the basis of development discourse. Success on the action plan rests upon the belief that more contraceptives, more health services, and more schools will be enough to reduce fertility rates. The political discourse, however, is better than the development discourse as a basis for policy making because it stresses the need for integration rather than running the risk of exclusion. The political discourse is also more demanding.  相似文献   
29.
"A bibliographical review serves to analyze the role of urban growth in patterns of international labor-force migration, as well as the effect of this migration on the development of the countries of origin, especially on their cities. While the review confirms the general idea that international migrants are either peasants or highly qualified personnel, it also shows that qualified workers are increasingly involved in international labor movements and that a great part of them come from large cities. It is to be expected that in these circumstances large cities of the countries of origin will become more integrated to international migratory systems." (SUMMARY IN ENG)  相似文献   
30.
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