全文获取类型
收费全文 | 14413篇 |
免费 | 749篇 |
专业分类
各国政治 | 941篇 |
工人农民 | 477篇 |
世界政治 | 1283篇 |
外交国际关系 | 722篇 |
法律 | 8187篇 |
中国政治 | 72篇 |
政治理论 | 3361篇 |
综合类 | 119篇 |
出版年
2023年 | 80篇 |
2021年 | 81篇 |
2020年 | 278篇 |
2019年 | 336篇 |
2018年 | 406篇 |
2017年 | 468篇 |
2016年 | 482篇 |
2015年 | 375篇 |
2014年 | 431篇 |
2013年 | 1951篇 |
2012年 | 393篇 |
2011年 | 405篇 |
2010年 | 377篇 |
2009年 | 390篇 |
2008年 | 411篇 |
2007年 | 479篇 |
2006年 | 395篇 |
2005年 | 368篇 |
2004年 | 421篇 |
2003年 | 378篇 |
2002年 | 337篇 |
2001年 | 438篇 |
2000年 | 386篇 |
1999年 | 328篇 |
1998年 | 236篇 |
1997年 | 169篇 |
1996年 | 178篇 |
1995年 | 167篇 |
1994年 | 163篇 |
1993年 | 181篇 |
1992年 | 228篇 |
1991年 | 250篇 |
1990年 | 227篇 |
1989年 | 226篇 |
1988年 | 196篇 |
1987年 | 223篇 |
1986年 | 208篇 |
1985年 | 184篇 |
1984年 | 176篇 |
1983年 | 184篇 |
1982年 | 148篇 |
1981年 | 127篇 |
1980年 | 99篇 |
1979年 | 151篇 |
1978年 | 111篇 |
1977年 | 104篇 |
1976年 | 76篇 |
1975年 | 74篇 |
1974年 | 84篇 |
1973年 | 90篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
891.
892.
893.
E S Traisman S Young B D Lifschultz H S Traisman I Benuck I Chasnoff 《Journal of forensic sciences》1988,33(1):267-271
This paper describes a case of a neonate with disseminated herpes simplex born to a 14-year-old asymptomatic mother. The infant's physical examination was normal at birth, and subsequent abnormalities were so subtle that infection was not recognized during life. Postmortem cultures of liver and spleen grew herpes simplex virus, and immunofluorescent direct antibody typing revealed Type 2. A cervical culture of the mother obtained after the infant's death was negative. 相似文献
894.
This paper uses a heretofore untapped source of information in the National Crime Survey (NCS) victimization data—the interviewer narratives—to explore school-related victimizations among adolescents. These narrative reports provide important information bearing on lifestyle and routine activity theories of victimization that is simply not available from the more familiar, highly structured portions of the NCS questionnaire. The NCS narratives suggest that a large proportion of school-related victimizations stems from peer interactions that occur in the course of routine daily activities and escalate into victimizations. Students represent pools of both potential offenders and potential victims who come in frequent contact with each other, often in the absence of capable guardians. However, rather than predatory, calculated attempts to harm, school-related victimizations among adolescents appear to consist primarily of bullying, injured pride, and misguided mischief. The theoretical and methodological implications of this study are highlighted. 相似文献
895.
This research contributes to a further understanding of prosecutorial discretion by exploring tenets of casual attribution
theory and etiology of bias theory as each informs an uncertainty avoidance perspective on the prosecutor's decision to divert
felony drug defendants from criminal prosecution and into a treatment program. The sociolegal consequences of the exercise
of this early screening decision are expressed by both conflict theorists and labeling theorists. Our analysis involves estimating
main effects and interaction effects of defendant ascribed status and achieved status on the likelihood of diversion. The
findings indicate partial support for hypotheses derived, from the theoretical perspectives pursued. In addition these findings
point to a more complex model of the subjective nature of the exercise of prosecutorial discretion, a model that benefits
from understanding the salience of minimizing uncertainty in the decision to criminals. 相似文献
896.
897.
The volunteer movement in criminal justice settings is burgeoning. It has been estimated that by the end of 1982 there will be over one million volunteers working in criminal-justice-related functions. The volunteer role that appears to be increasing most rapidly is that of the one-to-one counseling relationship with delinquent and young adult offenders on formal or informal probation. While the demand for volunteer probation officers is increasing rapidly, few of our courts have attempted to develop and validate screening instruments capable of assessing and predicting the general competency of the volunteer. The need for such instruments has been emphasized recently by Judge Keith J. Leenhouts, Director of Volunteers in Probation, a division of the National Council on Crime and Delinquency. The present study attempts to assess the usefulness of one such potential screening device, the Critical Incident Response Test (CIRT) developed by Traitel (1972) and others at the Oakland County Juvenile Court in Pontiac, Michigan. It is hoped that this study will motivate other probation departments and court volunteer programs to develop and validate similar selection instruments. 相似文献
898.
B H Parkin 《Journal of forensic sciences》1981,26(2):398-404
Human erythrocyte peptidase A (Pep A) displays a genetic polymorphism in blacks. Its occurrence in human semen was examined for its possible use as a semen typing system. Studies by starch gel electrophoresis, in which the Pep A was located by an improved method, were carried out on semen, semen stains, and vaginal swabs taken at known times after intercourse. In addition, a large number of vaginal swabs, negative for semen, were taken from females throughout their menstrual cycles and examined for Pep A activity. The results indicated that Pep A typing could be carried out on semen and semen stains. However, it was possible to determine the Pep A type on vaginal swabs only when they had been taken within about 3 h after intercourse. 相似文献
899.
900.