全文获取类型
收费全文 | 634篇 |
免费 | 19篇 |
专业分类
各国政治 | 18篇 |
工人农民 | 35篇 |
世界政治 | 26篇 |
外交国际关系 | 36篇 |
法律 | 316篇 |
中国共产党 | 2篇 |
中国政治 | 5篇 |
政治理论 | 207篇 |
综合类 | 8篇 |
出版年
2024年 | 2篇 |
2023年 | 8篇 |
2021年 | 6篇 |
2020年 | 11篇 |
2019年 | 24篇 |
2018年 | 21篇 |
2017年 | 19篇 |
2016年 | 10篇 |
2015年 | 16篇 |
2014年 | 19篇 |
2013年 | 77篇 |
2012年 | 17篇 |
2011年 | 16篇 |
2010年 | 17篇 |
2009年 | 24篇 |
2008年 | 24篇 |
2007年 | 24篇 |
2006年 | 19篇 |
2005年 | 11篇 |
2004年 | 19篇 |
2003年 | 12篇 |
2002年 | 11篇 |
2001年 | 17篇 |
2000年 | 17篇 |
1999年 | 13篇 |
1998年 | 6篇 |
1997年 | 3篇 |
1996年 | 9篇 |
1995年 | 7篇 |
1994年 | 8篇 |
1993年 | 13篇 |
1992年 | 7篇 |
1991年 | 20篇 |
1990年 | 8篇 |
1989年 | 16篇 |
1988年 | 8篇 |
1987年 | 10篇 |
1986年 | 16篇 |
1985年 | 10篇 |
1984年 | 9篇 |
1983年 | 11篇 |
1982年 | 6篇 |
1981年 | 10篇 |
1980年 | 7篇 |
1979年 | 7篇 |
1978年 | 2篇 |
1977年 | 2篇 |
1976年 | 1篇 |
1970年 | 1篇 |
1965年 | 1篇 |
排序方式: 共有653条查询结果,搜索用时 31 毫秒
81.
82.
83.
84.
85.
86.
Arrow wounds represent an unusual class of wounds rarely seen by most death investigators. Although the edged, broadhead-tipped arrow produces a wound usually characteristic of archery/crossbow weapons, the plain, field-tipped arrow wound can be confused with gunshot injuries in those cases in which powder residue or firearm projectiles or fragments or both are not recovered. We present a case of a deer carcass with a wound of uncertain firearm or archery origin which initiated a comparison of firearm wounds and archery wounds on fresh road-killed deer. We found the following features to be valuable in the differentiation of gunshot wounds and field-tipped archery wounds: First, the majority of the gunshot wounds (but none of the arrow wounds) had identifiable, macroscopic, wipe-off material and chemically identifiable wipe-off residue by spot test. Second, the archery wound defects had very inconspicuous abrasion rings as compared to the often prominent abrasion rings of gunshot wounds. Third, the actual central defect in the archery wounds was more likely to be oblong or slit-like compared to the gunshot wound defects, which were more likely to be round. 相似文献
87.
88.
89.
Practice Guidelines: How Good Are Medicine's New Recipes? 总被引:1,自引:0,他引:1
Alexander Morgan Capron 《The Journal of law, medicine & ethics》1995,23(1):47-48
90.
Vaginally inserted plastic tampon applicators were obtained from 42 female volunteers. The applicators were examined for the presence of ABH blood group substances, phosphoglucomutase (PGM), amylase, acid phosphatase, P30, and intact spermatozoa. Each applicator was accompanied by a control blood sample, a saliva specimen, a brief sexual and menstrual history, and method of birth control of the donor. Eight of the male sexual partners of the donors submitted blood and saliva samples. One male sexual partner submitted only a saliva sample. ABH blood group substances corresponding to the donor were recovered from 36 of the 42 applicators. The remaining 6 applicators revealed a combination of the donor's and sexual partner's ABH substances. The female's PGM type was recovered from 34 of the applicators. The remaining 8 applicators failed to show PGM activity. Of the applicators, 15 indicated evidence of prior sexual intercourse by the detection of ABH substances not consistent with the applicator donor (6 samples), high levels of acid phosphatase (11 samples), or recovery of spermatozoa (8 samples) or some combination of these. All applicator samples failed to show the presence of either P30 activity or PGM factors foreign to the female. 相似文献