全文获取类型
收费全文 | 15307篇 |
免费 | 224篇 |
专业分类
各国政治 | 435篇 |
工人农民 | 1274篇 |
世界政治 | 656篇 |
外交国际关系 | 498篇 |
法律 | 9513篇 |
中国政治 | 58篇 |
政治理论 | 3060篇 |
综合类 | 37篇 |
出版年
2020年 | 96篇 |
2019年 | 118篇 |
2018年 | 1385篇 |
2017年 | 1321篇 |
2016年 | 1161篇 |
2015年 | 168篇 |
2014年 | 180篇 |
2013年 | 684篇 |
2012年 | 342篇 |
2011年 | 1085篇 |
2010年 | 1140篇 |
2009年 | 725篇 |
2008年 | 912篇 |
2007年 | 893篇 |
2006年 | 240篇 |
2005年 | 239篇 |
2004年 | 354篇 |
2003年 | 344篇 |
2002年 | 194篇 |
2001年 | 318篇 |
2000年 | 298篇 |
1999年 | 221篇 |
1998年 | 94篇 |
1997年 | 84篇 |
1996年 | 97篇 |
1995年 | 96篇 |
1994年 | 98篇 |
1993年 | 63篇 |
1992年 | 142篇 |
1991年 | 153篇 |
1990年 | 140篇 |
1989年 | 158篇 |
1988年 | 135篇 |
1987年 | 152篇 |
1986年 | 135篇 |
1985年 | 153篇 |
1984年 | 129篇 |
1983年 | 146篇 |
1982年 | 98篇 |
1981年 | 93篇 |
1980年 | 69篇 |
1979年 | 104篇 |
1978年 | 83篇 |
1977年 | 77篇 |
1976年 | 58篇 |
1975年 | 48篇 |
1974年 | 57篇 |
1973年 | 59篇 |
1971年 | 50篇 |
1970年 | 46篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
901.
902.
Voter turnout in the United States is much lower than in almost all other democratic countries. This has been interpreted as a symptom of popular alienation from the political system, suspicion of politicians, and pessimism about the consequences of political activity. When these perspectives are measured directly, however, it is clear that Americans score very low on almost every item. Indeed, there is no relationship between political con- tentment and turnout. Turnout does not reflect international variations in acceptance of politicians or the political system. Rather, it responds to variations in the bureaucratic steps required to cast a ballot. The United States is one of a handful of countries that require a separate step–registra- tion–before the citizen can vote; and with the partial exception of France it is the only country in which the individual rather than the state bears the responsibility for registration. 相似文献
903.
Robert P. Stoker 《政策研究评论》1989,9(1):29-49
The diffusion of authority characteristic of federal governance challenges national leadership and complicates even the implementation of policy that promises mutual gains. To explore the problems of implementing national policy in a federalist context, this paper proposes a new approach to analysis, t h e implementation regime framework. From the regime perspective, the essential task of the implementation process is to create a context in which implementors are likely to cooperate to achieve policy goals despite the absence of dominating authority. Drawing upon the literature on international cooperation, the regime framework outlines the contextual conditions and elements of policy design that are likely to lead to cooperation in collective decision making. 相似文献
904.
905.
The premise that effects of maturational timing are mediated by social context is explored by comparing adolescent girls in dance and nondance schools. Because the dance student must maintain a relatively low body weight, being a late maturer (who is often leaner than an on-time maturer) is expected to be more advantageous to the dancer than to the student not required to meet a weight standard. Girls aged 14 to 18 were seen; 276 attended private schools and 69 attended national ballet company schools. AllSs were weighed and measured and asked questions about their secondary sexual development, weight-related concerns, eating concerns, adult sex-role expectancies, body image, emotional functioning, and family relationships. Menarcheal age was used to classify girls as early (before 11.5 years of age), on time (between 11.5 and 14 years), and late maturers (after 14 years). More dance than non-dance school students were late maturers (55% versus 29%). The dance students weighed less and were leaner, had higher eating scores, and had lower family relationship and impulse control scores than the comparison sample. Across groups, late maturing students weighed less, were leaner, and had lower diet and higher oral control scores than on-time maturers, with the differences more pronounced in the dance than nondance students. In addition, the on-time dancers had higher psychopathology, perfection, and bulimia scores and lower body image scores than the late maturing dancers. The findings are discussed in terms of a goodness of fit between the requirements of a social context and a person's physical and behavioral characteristics.This paper was prepared with the support of grants from the W. T. Grant Foundation and the National Institutes of Health.Ph.D. from the University of Pennsylvania. Research Interests: Girls' psychological adaptation to pubertal change, biosocial aspects of female reproductive events, development in at-risk children and adolescents. 相似文献
906.
907.
908.
909.
It is argued that there are significant differences between green electoral politics in Europe and green developments in the affluent non-European west, and that these are such that, despite the greater political formalization of the green movement in Western Europe, there is a sense in which North American and Antipodean developments are ultimately more fundamental than those that have occurred in Europe. Loosely adopting explanatory categories employed by Rudig and Lowe in a Political Studies article, we examine evidence under four sub-heads: electoral thresholds; the historical legacy of the environment movement; the different contextual roles played by the anti-nuclear movement and wilderness experience, and ecology, Marxism and the new left. 相似文献
910.