全文获取类型
收费全文 | 10782篇 |
免费 | 301篇 |
专业分类
各国政治 | 409篇 |
工人农民 | 402篇 |
世界政治 | 727篇 |
外交国际关系 | 291篇 |
法律 | 6830篇 |
中国政治 | 70篇 |
政治理论 | 2266篇 |
综合类 | 88篇 |
出版年
2020年 | 112篇 |
2019年 | 165篇 |
2018年 | 198篇 |
2017年 | 229篇 |
2016年 | 218篇 |
2015年 | 169篇 |
2014年 | 188篇 |
2013年 | 961篇 |
2012年 | 227篇 |
2011年 | 271篇 |
2010年 | 223篇 |
2009年 | 273篇 |
2008年 | 271篇 |
2007年 | 282篇 |
2006年 | 262篇 |
2005年 | 249篇 |
2004年 | 240篇 |
2003年 | 251篇 |
2002年 | 243篇 |
2001年 | 425篇 |
2000年 | 369篇 |
1999年 | 297篇 |
1998年 | 158篇 |
1997年 | 127篇 |
1996年 | 139篇 |
1995年 | 139篇 |
1994年 | 139篇 |
1993年 | 136篇 |
1992年 | 233篇 |
1991年 | 254篇 |
1990年 | 245篇 |
1989年 | 253篇 |
1988年 | 231篇 |
1987年 | 224篇 |
1986年 | 264篇 |
1985年 | 259篇 |
1984年 | 229篇 |
1983年 | 215篇 |
1982年 | 151篇 |
1981年 | 127篇 |
1980年 | 114篇 |
1979年 | 151篇 |
1978年 | 86篇 |
1977年 | 111篇 |
1976年 | 95篇 |
1975年 | 71篇 |
1974年 | 90篇 |
1973年 | 84篇 |
1972年 | 78篇 |
1971年 | 69篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
51.
52.
We develop a model of the peace dividend and use it to predict the fiscal consequences of a reduction in the demand for military spending. The model is based on the assumption that the political process responds to political demands and costs in a way that maximizes net political benefits. The predictions of our model on how a peace dividend will be allocated over nonmilitary spending, tax relief, and deficit reduction is tested against the experience of eight major wars in United States history. 相似文献
53.
A method ist described to determine the CO-content in the tissue of muscles. The prepared tissue is pulverized in a swinging mill at the temperature of liquid nitrogen. Parts of the powder are weighed into headspace vessels. Carbon monoxide ist ejected by a formerly described method and measured gaschromatographically. The Fe-content is determined after an acid disintegration by AAS. Acute intoxications lead to higher CO-contents in heart than in periphere muscles. Chronic exposure to carbon monoxide does not produce these differences. 相似文献
54.
55.
We tested competing hypotheses derived from Gottfredson and Hirschis (1990) general theory and Moffitt's (1993a) developmental theory of antisocial behavior. The developmental theory argues that different factors give rise to antisocial behavior at different points in the life course. In contrast, the general theory maintains that the factor underlying antisocial behavior (i.e., criminal propensity) is the same at all ages. To test these competing predictions, we used longitudinal data spanning from age 5 to age 18 for the male subjects in the Dunedin Multidisciplinary Health and Development Study. Using reports from three sources (parents, teachers, and the boys themselves), we estimated second-order confirmatory factor models of antisocial behavior. These models provided consistent support for the developmental theory, showing that separate latent factors underlie childhood and adolescent antisocial behavior. Moreover, we found that these childhood and adolescent factors related in ways predicted by Moffitt's developmental theory to four correlates of antisocial behavior: Childhood antisocial behavior was related more strongly than adolescent antisocial behavior to low verbal ability, by per activity, and negative/impulsive personality, whereas adolescent antisocial behavior was related more strongly than childhood antisocial behavior to peer delinquency. The two underlying latent factors also showed the predicted differential relations to later criminal convictions: Childhood antisocial behavior was significantly more strongly associated with convictions for violence, while adolescent antisocial behavior was significantly more strongly associated with convictions for nonviolent offenses. 相似文献
56.
57.
R. Alan Thompson 《Journal of Police and Criminal Psychology》1997,12(1):61-69
On January 1, 1996, a new law took effect in Texas granting certain state citizens the privilege to carry a concealed handgun
on their person for the first time since 1871. As a result of this dramatic shift in state law, Texas is now among the growing
number of states across the nation who have adopted similar statutory provisions in one form or another. While at least one
empiricals study of citizen’s attitudes toward concealed handgun ownership was conducted prior to the law’s effective date,
no similar efforts were undertakens to assess the beliefs, perceptions and attitudes of the state’s law enforcement officers
about this important social policy. The present study was therefore undertaken in response to the lack of serious attention
which the issue of concealed handgun ownership among private citizens has received as it directly relates to the law enforcement
profession. Subjects for this study (N=327) were drawn from four Texas law enforcement agencies representing various organizational
sizes and missions. While the responses of officers who participated in the study indicate optimism about the law’s potential
to deter various types of crime, they also reflect a certain degree of concerns about concealed handgun ownership among private
citizens especially as this policy directly relates to perceive inadequacies in statemandated requirements and issues affecting
officer safety. 相似文献
58.
Cheldelin Sandra Greenberg Melanie Honeyman Christopher Volpe Maria R. 《Negotiation Journal》2003,19(1):65-67
Negotiation Journal - 相似文献
59.
60.