全文获取类型
收费全文 | 9755篇 |
免费 | 229篇 |
专业分类
各国政治 | 542篇 |
工人农民 | 262篇 |
世界政治 | 682篇 |
外交国际关系 | 449篇 |
法律 | 5615篇 |
中国共产党 | 1篇 |
中国政治 | 37篇 |
政治理论 | 2283篇 |
综合类 | 113篇 |
出版年
2020年 | 99篇 |
2019年 | 125篇 |
2018年 | 177篇 |
2017年 | 206篇 |
2016年 | 225篇 |
2015年 | 164篇 |
2014年 | 182篇 |
2013年 | 1162篇 |
2012年 | 245篇 |
2011年 | 250篇 |
2010年 | 207篇 |
2009年 | 215篇 |
2008年 | 263篇 |
2007年 | 230篇 |
2006年 | 258篇 |
2005年 | 211篇 |
2004年 | 229篇 |
2003年 | 228篇 |
2002年 | 225篇 |
2001年 | 354篇 |
2000年 | 316篇 |
1999年 | 256篇 |
1998年 | 133篇 |
1997年 | 140篇 |
1996年 | 109篇 |
1995年 | 129篇 |
1994年 | 135篇 |
1993年 | 123篇 |
1992年 | 189篇 |
1991年 | 207篇 |
1990年 | 196篇 |
1989年 | 213篇 |
1988年 | 186篇 |
1987年 | 180篇 |
1986年 | 201篇 |
1985年 | 160篇 |
1984年 | 164篇 |
1983年 | 160篇 |
1982年 | 112篇 |
1981年 | 96篇 |
1980年 | 77篇 |
1979年 | 122篇 |
1978年 | 91篇 |
1977年 | 85篇 |
1976年 | 76篇 |
1975年 | 81篇 |
1974年 | 107篇 |
1973年 | 94篇 |
1972年 | 78篇 |
1971年 | 69篇 |
排序方式: 共有9984条查询结果,搜索用时 0 毫秒
61.
This study examined crime and violence against abortion clinics, testing elements of several theories that may help explain the variation of such attacks. The study theoretically and methodologically improved upon the prior research on abortion-related crime and violence. Theoretically, it investigated previously unexamined hypotheses from the social movement literature that may be relevant to this type of behavior. Methodologically, it used more careful measures for several variables, employed unique and heretofore ignored data bases, and examined hundreds of criminal acts across several types of crime (e.g., violence, vandalism, and harassment) directed at abortion clinics. Employing robust logistic regression and correcting for clustering of clinics by state, the study investigated the cross-sectional effects of state-level cultural and structural characteristics on anti-abortion crimes against clinics and staff. Results indicated that some crimes against clinics are more likely in areas where female empowerment is weaker, female victimization is more tolerated, and the anti-abortion movement has failed to reduce abortions. 相似文献
62.
The public's perception of the police is important because it is linked to several important outcomes, including compliance and cooperation with police. Long recognized as being important, research has investigated the factors associated with citizens' evaluations of the police. The way police do their jobs, in addition to what they accomplish, has recently emerged as being a significant determinant of citizens' evaluations of police. What remains largely unexamined is whether this relationship varies across distinct types of contacts between the police and citizens. The current study estimated the effects of citizens' perceptions of procedural justice on overall ratings of officer performance across three types of police–citizen encounters. Results showed that procedurally fair treatment is the most important predictor of citizens' evaluations. 相似文献
63.
G A Grigor'ev V A Lopatin V I Makarov A L Fedorovtsev 《Sudebno-meditsinskaia ekspertiza》1990,33(1):17-18
In this article a practical case is described when gunshot directions and position of a victim's body at the moment of each shot were determined by natural simulation using an LG-78 laser (made in the form of a gun). 相似文献
64.
This study used data from 299 police officers from 12 municipal police departments across the state of Virginia to determine
the relationship between education and police performance. Performance was measured by supervisor evaluations of each officer's
overall performance, communication skills, public relations skills, report writing skills, response to new training, decision
making ability, and commitment to the police department. Significant correlations were found between education and most measures
of performance. Most importantly, the results show a significant correlation between overall performance and education (r=24,
p.<001). The only variables not proving to be significantly related to education were objective measures of the volume of
arrests, number of times the officer required discipline, and number of accidents. Interestingly, the benefits of a college
education do not become apparent until police officers gain experience. In addition, police, officers with only a high school
diploma decreased in overall performance after five years of experience. 相似文献
65.
66.
67.
William M. Rees 《The Modern law review》1987,50(1):100-105
68.
69.
70.