全文获取类型
收费全文 | 17944篇 |
免费 | 526篇 |
专业分类
各国政治 | 637篇 |
工人农民 | 772篇 |
世界政治 | 1152篇 |
外交国际关系 | 607篇 |
法律 | 11507篇 |
中国共产党 | 34篇 |
中国政治 | 173篇 |
政治理论 | 3416篇 |
综合类 | 172篇 |
出版年
2021年 | 112篇 |
2020年 | 261篇 |
2019年 | 272篇 |
2018年 | 393篇 |
2017年 | 463篇 |
2016年 | 490篇 |
2015年 | 391篇 |
2014年 | 416篇 |
2013年 | 1654篇 |
2012年 | 506篇 |
2011年 | 524篇 |
2010年 | 407篇 |
2009年 | 463篇 |
2008年 | 549篇 |
2007年 | 611篇 |
2006年 | 562篇 |
2005年 | 490篇 |
2004年 | 487篇 |
2003年 | 445篇 |
2002年 | 411篇 |
2001年 | 643篇 |
2000年 | 601篇 |
1999年 | 478篇 |
1998年 | 244篇 |
1997年 | 183篇 |
1996年 | 213篇 |
1995年 | 187篇 |
1994年 | 203篇 |
1993年 | 185篇 |
1992年 | 329篇 |
1991年 | 383篇 |
1990年 | 334篇 |
1989年 | 334篇 |
1988年 | 335篇 |
1987年 | 325篇 |
1986年 | 340篇 |
1985年 | 328篇 |
1984年 | 272篇 |
1983年 | 290篇 |
1982年 | 200篇 |
1981年 | 211篇 |
1980年 | 166篇 |
1979年 | 199篇 |
1978年 | 163篇 |
1977年 | 132篇 |
1976年 | 115篇 |
1975年 | 107篇 |
1974年 | 117篇 |
1973年 | 132篇 |
1971年 | 94篇 |
排序方式: 共有10000条查询结果,搜索用时 7 毫秒
121.
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
122.
K Lalu P J Karhunen P Rautiainen 《The American journal of forensic medicine and pathology》1992,13(3):196-198
A 6-month-old girl died suddenly without any previous symptoms of heart failure. Autopsy examination showed cardiomegaly (97 g) with a severely fibrotized myocardium. The left coronary artery was originating from the pulmonary artery. Histologically, the myocardium showed myocardial infarcts of different ages, as well as grossly thickened arterial branches due to increased flow in left-right shunt. We suggest that rare anomalies of the coronary arteries should be considered in the autopsies of suspected sudden infant death syndrome cases. 相似文献
123.
The impact of high temperatures (24 to 39 degrees C) and low to moderately high humidities (20 to 70%) on the applicability of TLC systems for drug identification was studied during a 6 month climatologic cycle in Burkina Faso (West Africa). In general, the Rf values as observed on the plates were found to be substantially affected as compared with values obtained at temperate climates. Some TLC systems were more affected than others and the largest deviations of up to 30 Rf units were at low humidities. Tropical conditions also had a negative effect on the reproducibility of Rf values. However, when an Rf-correction procedure was applied, using reference mixtures of known drugs on each plate, accuracy as well as reproducibility of the resulting Rfc values were drastically improved and data thus corrected were found to be compatible with existing TLC data bases developed under moderate climatological conditions. The impact of high to extremely high humidities (70 to 100%) remains to be investigated. 相似文献
124.
K. Michael Reynolds Pamala L. Griset Ernest Scott 《American Journal of Criminal Justice》2006,31(1):1-17
Many attempts have been made over the last several decades to improve communication among law enforcement agencies. This article
is a case study of a “low-level” data sharing project in Florida that could serve as a national model. The Florida Law Enforcement
Data Sharing Consortium is a partnership between the University of Central Florida and more than one hundred law enforcement
agencies. It offers an inexpensive, yet technically advanced alternative to the proprietary data sharing model. Its distributed
architecture was endorsed by the Markle Foundation, the 9/11 Commission, and the 2004 National Security Act. Civil liberties
concerns raised by this and other types of data sharing projects are discussed. 相似文献
125.
126.
This article examines the question of trust in Bosnia and Herzegovina with a special focus on the role of ethnicity. We find generalised trust to be low and declining in Bosnia and Herzegovina. Moreover, generalised trust is negatively affected by the degree of ethnic heterogeneity in the region. However, a further examination of trust reveals a more complex relationship between ethnicity and trust: people tend to show low levels of trust in all other people irrespective of their ethnic belongings. We argue that ethnic distribution might capture some other regional specific characteristics that also affect the level of trust. 相似文献
127.
行政问责制对地方政府经济行为的影响——制度堕距的视角 总被引:1,自引:0,他引:1
行政问责制是构建责任政府的具体制度安排。问责制度在制度设计与制度执行层面存在制度堕距。制度堕距对地方政府经济行为产生重要影响,因此,从制度设计与制度执行层面改进问责制制度文本,消弭制度堕距,有助于构建优良的问责制制度,推动地方政府经济行为合理化。 相似文献
128.
The link between resource deprivation and urban violence has long been explored in criminological research. Studies, however, have largely ignored the potential for resource deprivation in particular communities to affect rates of violence in others. The relative inattention is notable because of the strong theoretical grounds to anticipate influences that extend both to geographically contiguous areas and to those that, though not contiguous, share similar social characteristics. We argue that such influences—what we term spatial and social proximity effects, respectively—constitute a central feature of community dynamics. To support this argument, we develop and test theoretically derived hypotheses about spatial and social proximity effects of resource deprivation on aggregated and disaggregated homicide counts. Our analyses indicate that local area resource deprivation contributes to violence in socially proximate communities, an effect that, in the case of instrumental homicides, is stronger when such communities are spatially proximate. We conclude by discussing the implications of our findings for theories focused on community‐level social processes and violence, and for policies aimed at reducing crime in disadvantaged areas. 相似文献
129.
Experiencing a criminal victimization is among one of the most stressful human experiences. A cross-sectional study of victims of violent crime and victims of nonviolent crime suggests that there are statistically significant differences in experiences in the initial aftermath of the crime event and a few common effects. This article describes the common effects that are associated with criminal victimization in the context of intense distress and discusses the theoretical implications of well-being in the coping process. One hundred seventy-five victims of violent or nonviolent crime were interviewed. Implications for social work practice and theory and future research are delineated. 相似文献
130.
Netherlands International Law Review - 相似文献