全文获取类型
收费全文 | 4709篇 |
免费 | 177篇 |
专业分类
各国政治 | 378篇 |
工人农民 | 210篇 |
世界政治 | 493篇 |
外交国际关系 | 287篇 |
法律 | 1919篇 |
中国政治 | 21篇 |
政治理论 | 1468篇 |
综合类 | 110篇 |
出版年
2023年 | 26篇 |
2022年 | 17篇 |
2021年 | 35篇 |
2020年 | 70篇 |
2019年 | 96篇 |
2018年 | 140篇 |
2017年 | 135篇 |
2016年 | 170篇 |
2015年 | 99篇 |
2014年 | 131篇 |
2013年 | 750篇 |
2012年 | 144篇 |
2011年 | 145篇 |
2010年 | 107篇 |
2009年 | 135篇 |
2008年 | 161篇 |
2007年 | 165篇 |
2006年 | 106篇 |
2005年 | 151篇 |
2004年 | 150篇 |
2003年 | 124篇 |
2002年 | 132篇 |
2001年 | 135篇 |
2000年 | 133篇 |
1999年 | 97篇 |
1998年 | 81篇 |
1997年 | 78篇 |
1996年 | 70篇 |
1995年 | 61篇 |
1994年 | 65篇 |
1993年 | 53篇 |
1992年 | 69篇 |
1991年 | 83篇 |
1990年 | 77篇 |
1989年 | 72篇 |
1988年 | 60篇 |
1987年 | 41篇 |
1986年 | 45篇 |
1985年 | 46篇 |
1984年 | 45篇 |
1983年 | 40篇 |
1982年 | 46篇 |
1981年 | 48篇 |
1980年 | 41篇 |
1979年 | 31篇 |
1978年 | 20篇 |
1977年 | 18篇 |
1976年 | 19篇 |
1975年 | 19篇 |
1974年 | 21篇 |
排序方式: 共有4886条查询结果,搜索用时 9 毫秒
21.
22.
23.
24.
25.
26.
27.
Social scientists have theorized about the cycle of domestic violence in family abuse. Little research has addressed dating violence as a consequence to the experience of domestic violence by children. This article deals with the self-reported experience of dating violence by high school students from abusive and nonabusive households. A survey was conducted of 1,353 students in a rural area of North Dakota. Results indicated that students from abusive households showed significantly higher incidence of dating violence than those from homes where no abuse was evident. However, less than one in five of the students from abusive home reported dating violence, providing little support for the cycle of violence hypothesis. Students from abusive homes viewed violence as negatively as students from nonabusive homes. Thus, while there are significant differences between the two groups, there are also important similarities. Although there is apparently a greater risk of dating violence among students who have experienced violence at home, these data do not support the idea of an inescapable pattern of violence among adolescents who have experienced violence themselves. 相似文献
28.
29.
30.
Toxicologic findings in the USS Iowa disaster. 总被引:5,自引:0,他引:5
The toxicologic results from the 47 victims of the explosion on the USS Iowa are presented. Good correlation between carboxyhemoglobin saturations and cause of death was found. There were no correlations between blood cyanide concentrations and causes of death. Volatile analysis suggested postmortem ethanol production rather than antemortem ethanol ingestion. No drugs except nicotine were detected in any of the victims. 相似文献