全文获取类型
收费全文 | 6970篇 |
免费 | 183篇 |
专业分类
各国政治 | 280篇 |
工人农民 | 474篇 |
世界政治 | 552篇 |
外交国际关系 | 280篇 |
法律 | 4157篇 |
中国政治 | 69篇 |
政治理论 | 1314篇 |
综合类 | 27篇 |
出版年
2021年 | 45篇 |
2020年 | 91篇 |
2019年 | 132篇 |
2018年 | 178篇 |
2017年 | 159篇 |
2016年 | 154篇 |
2015年 | 108篇 |
2014年 | 155篇 |
2013年 | 752篇 |
2012年 | 170篇 |
2011年 | 187篇 |
2010年 | 155篇 |
2009年 | 179篇 |
2008年 | 209篇 |
2007年 | 203篇 |
2006年 | 180篇 |
2005年 | 175篇 |
2004年 | 214篇 |
2003年 | 163篇 |
2002年 | 145篇 |
2001年 | 334篇 |
2000年 | 301篇 |
1999年 | 208篇 |
1998年 | 92篇 |
1997年 | 107篇 |
1996年 | 83篇 |
1995年 | 72篇 |
1994年 | 73篇 |
1993年 | 58篇 |
1992年 | 149篇 |
1991年 | 161篇 |
1990年 | 149篇 |
1989年 | 140篇 |
1988年 | 126篇 |
1987年 | 133篇 |
1986年 | 115篇 |
1985年 | 107篇 |
1984年 | 105篇 |
1983年 | 95篇 |
1982年 | 68篇 |
1981年 | 83篇 |
1980年 | 40篇 |
1979年 | 78篇 |
1978年 | 48篇 |
1977年 | 32篇 |
1975年 | 40篇 |
1974年 | 53篇 |
1973年 | 56篇 |
1972年 | 41篇 |
1971年 | 35篇 |
排序方式: 共有7153条查询结果,搜索用时 15 毫秒
891.
In the Institute of Forensic Medicine in Essen/Germany 24 cases of lethal child battering or neglect have been observed over 17 years from 1973 to 1989. The medicolegal and morphologic findings in these cases are presented and compared to the literature. The patterns of abuse/neglect in Essen compare to those frequently reported in the literature: skull/brain traumas caused by blunt impact, multiple hematomas, bone fractures, and symptoms of malnutrition, vitamin deficiency, and general neglect. In many cases the abuse could be shown to have been chronic. In the seven years 1983-1989 the cases of lethal child mistreatment and neglect amounted to 0.18 percent of all autopsies. Five cases of lethal sexual assault in children during the same period are compared to the mistreated cases. 相似文献
892.
This paper examines the role of white-collar crime in the savings and loan crisis. Noting economists' assertions that crime was only a minor ingredient in the crisis, we compare the explanatory power of this “minimal fraud” model to that of its “material fraud” alternative. Bringing together evidence from every major study of thrifts in the 1980s, we argue that only the material fraud hypothesis can make sense of these data. This study demonstrates the utility of deductive reasoning in distinguishing between white-collar crime and ordinary business transactions, thereby potentially contributing to prosecutorial efforts, and helping resolve long-standing methodological dilemmas confronting white-collar criminologists. 相似文献
893.
894.
895.
S Ikemoto S Tsuchida H Hinohara E Nishiumi E Kajii A Nagai K Tomita D Y Huang 《Forensic science international》1987,35(2-3):119-123
Nine salivary polymorphic systems (Pa, Pb, Pr, Db, PmF, PIF, Ph, Amy1 and s-AcP) were examined using parotid and whole saliva from random Japanese individuals. The gene frequencies obtained were: Pa+ = 0.221, Pb1 = 1.000 Pr1 = 0.741, Db+ = 0.033, PIF+ = 0.715, Ph+ = 0.029, Amyv1 = 0.013 and s-AcPA = 0.217, respectively. 相似文献
896.
897.
898.
899.
P K Petrik 《The American journal of forensic medicine and pathology》1989,10(2):146-148
A case of sudden death due to massive small intestinal infarction is reported. The cause of the intestinal infarction was occlusion of mesenteric vessels by massive fibrosis secondary to carcinoid tumor. Since no primary carcinoid tumor was found in the intestine or elsewhere, it is suggested that the carcinoid tumor had originated in the mesentery. 相似文献
900.