全文获取类型
收费全文 | 5758篇 |
免费 | 214篇 |
专业分类
各国政治 | 205篇 |
工人农民 | 250篇 |
世界政治 | 417篇 |
外交国际关系 | 307篇 |
法律 | 3594篇 |
中国政治 | 28篇 |
政治理论 | 1139篇 |
综合类 | 32篇 |
出版年
2023年 | 46篇 |
2021年 | 32篇 |
2020年 | 82篇 |
2019年 | 111篇 |
2018年 | 136篇 |
2017年 | 150篇 |
2016年 | 174篇 |
2015年 | 106篇 |
2014年 | 129篇 |
2013年 | 562篇 |
2012年 | 149篇 |
2011年 | 184篇 |
2010年 | 130篇 |
2009年 | 161篇 |
2008年 | 155篇 |
2007年 | 142篇 |
2006年 | 156篇 |
2005年 | 122篇 |
2004年 | 144篇 |
2003年 | 146篇 |
2002年 | 114篇 |
2001年 | 225篇 |
2000年 | 233篇 |
1999年 | 166篇 |
1998年 | 78篇 |
1997年 | 75篇 |
1996年 | 66篇 |
1995年 | 61篇 |
1994年 | 65篇 |
1993年 | 67篇 |
1992年 | 125篇 |
1991年 | 121篇 |
1990年 | 146篇 |
1989年 | 131篇 |
1988年 | 141篇 |
1987年 | 137篇 |
1986年 | 102篇 |
1985年 | 117篇 |
1984年 | 84篇 |
1983年 | 79篇 |
1982年 | 58篇 |
1981年 | 50篇 |
1980年 | 45篇 |
1979年 | 53篇 |
1978年 | 40篇 |
1976年 | 32篇 |
1975年 | 33篇 |
1974年 | 43篇 |
1973年 | 28篇 |
1970年 | 29篇 |
排序方式: 共有5972条查询结果,搜索用时 343 毫秒
61.
62.
Effects of positional restraint on oxygen saturation and heart rate following exercise 总被引:1,自引:0,他引:1
D T Reay J D Howard C L Fligner R J Ward 《The American journal of forensic medicine and pathology》1988,9(1):16-18
This report assesses the effects on peripheral oxygen saturation and heart rate that positional restraint induces when a person is prone, handcuffed, and "hog-tied." Peripheral oxygen saturation and heart rate were monitored at rest, during exercise, and during recovery from exercise for 10 adult subjects. The effects of positional restraint produced a mean recovery time that was significantly prolonged. Consequently, the physiological effects produced by positional restraint should be recognized in deaths where such measures are used. 相似文献
63.
This Article analyzes the development and complexities of the antitrust state action doctrine and the Local Government Antitrust Act as these doctrines apply to both "municipalities" and private entities. The restructuring of a public hospital is used as a model to facilitate the antitrust analysis. The restructuring model, which typically involves the leasing of a hospital facility by a public entity to a private nonprofit corporation, offers the unique opportunity to compare the different standards employed under the state action doctrine and the Local Government Antitrust Act. As a practical matter, the Article provides a framework for a public hospital to evaluate the impact of corporate restructuring on its antitrust liability exposure and to develop strategies to minimize antitrust risks. 相似文献
64.
65.
66.
67.
The authors present a method to separate and preserve stomach contents for forensic purpose. Analysis by "sieve tower" technique is simple and quickly done during autopsy. Solid phases of stomach content are arranged size up and can be stored for subsequent examinations. With the fluid phase drug analysis or microscopic analysis to confirm identy of the foodstuffs may be done. By adding alcohol (70%) enzymatic digestion and bacterial degradation of the stomach content are stopped. 相似文献
68.
69.
70.
The right to die may be among the most legally complex and culturally sensitive areas of civil rights to emerge in our time. The thorny issues associated with a terminally ill individual's right to self-determination, and the disposition of individuals who are incompetent to make right to die decisions for themselves, promises to keep all parties involved - health care professionals, medical ethicists, families, lawyers, judges, and state legislators -busy for some time to come. To this point, the state courts have taken the lead in the right to die debate, while the state legislatures have tended to drag their collective feet. This article lays the case law groundwork for right to die decision making, then goes on to assay the legislative responses to the issue that have been rendered in the fifty states. 相似文献