全文获取类型
收费全文 | 74003篇 |
免费 | 3011篇 |
专业分类
各国政治 | 4547篇 |
工人农民 | 3024篇 |
世界政治 | 6474篇 |
外交国际关系 | 3881篇 |
法律 | 36235篇 |
中国共产党 | 12篇 |
中国政治 | 783篇 |
政治理论 | 21108篇 |
综合类 | 950篇 |
出版年
2021年 | 414篇 |
2020年 | 1177篇 |
2019年 | 1521篇 |
2018年 | 1744篇 |
2017年 | 2035篇 |
2016年 | 2237篇 |
2015年 | 1831篇 |
2014年 | 2110篇 |
2013年 | 10594篇 |
2012年 | 1762篇 |
2011年 | 1916篇 |
2010年 | 1917篇 |
2009年 | 2133篇 |
2008年 | 1908篇 |
2007年 | 1901篇 |
2006年 | 2008篇 |
2005年 | 1916篇 |
2004年 | 1812篇 |
2003年 | 1668篇 |
2002年 | 1628篇 |
2001年 | 1985篇 |
2000年 | 1737篇 |
1999年 | 1509篇 |
1998年 | 1209篇 |
1997年 | 1053篇 |
1996年 | 1016篇 |
1995年 | 974篇 |
1994年 | 1007篇 |
1993年 | 1002篇 |
1992年 | 1101篇 |
1991年 | 1145篇 |
1990年 | 1069篇 |
1989年 | 1119篇 |
1988年 | 1097篇 |
1987年 | 1131篇 |
1986年 | 1115篇 |
1985年 | 1155篇 |
1984年 | 1025篇 |
1983年 | 1096篇 |
1982年 | 948篇 |
1981年 | 904篇 |
1980年 | 716篇 |
1979年 | 778篇 |
1978年 | 632篇 |
1977年 | 574篇 |
1976年 | 534篇 |
1975年 | 456篇 |
1974年 | 450篇 |
1973年 | 451篇 |
1972年 | 399篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
941.
On 26 October 1992, a majority of Canadians in a majority ofprovinces rejected the Charlottetown Accord in a national referendum.The accord capped the "Canada round" of constitutional negotiationsand attempted to satisfy Quebec, while also addressing otherpan-Canadian issues. The accord was defeated for different reasonsin different parts of the country. In Quebec, the "No" sideargued that the agreement did not meet their demands for greaterjurisdictionalautonomy within the federation. In the rest of Canada, the "No"side was particularly successful in demonstrating that the agreementdeviated from the principle of equality in the treatment ofindividuals and provinces. These critiques, inspired by differentvisions of the federation, lead in different directions. Inlight of these divisions, many commentators have suggested thatintergovernmental elites ought to abandon efforts of wholesaleconstitutional change. However, political developments in Quebecmay force these questions back onto the agenda. 相似文献
942.
Wattelar C 《Estudios demográficos y urbanos》1993,8(2):415-425
The author reviews current demographic trends in the countries of the European Community in the light of the efforts to abolish frontiers and border controls among member countries. She shows that there has been a general trend toward commonality in many aspects of demographic behavior. 相似文献
943.
Flores C 《Estudios demográficos y urbanos》1993,8(2):361-76, 485
"Constitution of a trade bloc between Mexico, the United States and Canada through the North American Free Trade Agreement (NAFTA) in this decade has called attention to...the role of Mexico's southern border, Central American conflicts and migrations from that era. Relevant adjustments have been made to Mexico's policy in approaching problems regarding its southern neighbors. These changes respond largely to the perception held by larger economic blocs and migration generated by unequal development levels within these regions and countries." (SUMMARY IN ENG) 相似文献
944.
Public preferences about the availability of abortion under various circumstances have remained fairly stable over time. Yet a standard CBS/New York Times abortion question indicates that a significant shift in opinion occurred during the 1980s, whereby the public became increasingly supportive of legalized abortion as it is now. These very different patterns of public opinion about abortion suggest that the public perceived a shift in the abortion status quo, toward more restricted access, over time, and became more supportive of current abortion policy.A model of support for legalized abortion as it is now is developed that incorporates the influences of court activities and interest-group behavior. The analysis indicates that the public reacted directly to the activities of the courts, becoming more supportive of current abortion policy in response to media coverage of court cases that challenged the abortion status quo and Supreme Court nominations and confirmations. Although absolute preferences remained largely unchanged, it appears the public perceived an increasing threat to the status quo and became correspondingly less enamored with further restrictions on the availability of abortion. 相似文献
945.
946.
947.
948.
949.
950.