全文获取类型
收费全文 | 2875篇 |
免费 | 49篇 |
专业分类
各国政治 | 167篇 |
工人农民 | 66篇 |
世界政治 | 170篇 |
外交国际关系 | 75篇 |
法律 | 2037篇 |
中国政治 | 22篇 |
政治理论 | 366篇 |
综合类 | 21篇 |
出版年
2020年 | 38篇 |
2019年 | 30篇 |
2018年 | 32篇 |
2017年 | 43篇 |
2016年 | 44篇 |
2015年 | 25篇 |
2014年 | 46篇 |
2013年 | 229篇 |
2012年 | 64篇 |
2011年 | 73篇 |
2010年 | 38篇 |
2009年 | 41篇 |
2008年 | 62篇 |
2007年 | 77篇 |
2006年 | 72篇 |
2005年 | 79篇 |
2004年 | 77篇 |
2003年 | 73篇 |
2002年 | 75篇 |
2001年 | 163篇 |
2000年 | 128篇 |
1999年 | 81篇 |
1998年 | 28篇 |
1995年 | 21篇 |
1994年 | 26篇 |
1993年 | 22篇 |
1992年 | 67篇 |
1991年 | 71篇 |
1990年 | 63篇 |
1989年 | 84篇 |
1988年 | 88篇 |
1987年 | 78篇 |
1986年 | 86篇 |
1985年 | 70篇 |
1984年 | 40篇 |
1983年 | 47篇 |
1982年 | 23篇 |
1981年 | 33篇 |
1979年 | 29篇 |
1978年 | 24篇 |
1977年 | 30篇 |
1976年 | 22篇 |
1975年 | 35篇 |
1974年 | 32篇 |
1973年 | 34篇 |
1972年 | 34篇 |
1971年 | 27篇 |
1970年 | 23篇 |
1969年 | 29篇 |
1968年 | 24篇 |
排序方式: 共有2924条查询结果,搜索用时 0 毫秒
961.
962.
963.
Perepechina IO 《Sudebno-meditsinskaia ekspertiza》2002,45(4):29-35
The criterion of sufficiency of genetic information for establishing identity should be accepted for adequate realization of the potentialities of DNA identification as a legal proof. Attaining of this point in expert evaluations will be considered sufficient for formulation of a categorical conclusion on the source of the object. The key point in the choice of this criterion should be clear-cut definition of the identification task; analysis of equivalent probability values is suggested as its technology. The choice and regulation of the reference value should be carried out at an inter-departmental level. 相似文献
964.
965.
Application of a morphometric method for investigation of chronic virus hepatitis in drug addicts and persons rejecting drug abuse is described. Chronic hepatitis in narcomania runs with frequent formation of lymphoid follicules in the portal tracts, relatively inactive portal hepatitis in marked lobular component of inflammation, pronounced fibrosis and early formation of micronodular hepatic cirrhosis, proliferation of biliary ducts, high neutrophil, eosinophil and macrophage content in the infiltrate, accumulation of macrophages in the portal tracts by granuloma type. These criteria are recommended for diagnosis of narcomania by morphological findings. 相似文献
966.
967.
968.
The results of investigation of biological activity of information molecules, i.e. cytomedines, obtained from injuries by using the method of acetous extraction (V.G. Morozov, V. Kh. Havinson, 1981) are presented in the experimental manner and on the basis of practical materials. The sequence of formation of hemorrhages and injuries was demonstrated accurately enough by using the biological activity of extracted cytomedines. 相似文献
969.
970.
Solokhin EV Kanibolotskiĭ AA Chernolikhova IA Lapteva MI Potemkin AM 《Sudebno-meditsinskaia ekspertiza》2002,45(2):32-35
Section specimens from subjects dead from narcotic poisoning in 1998-1999 are analyzed. The results indicate that narcotic poisonings were primarily due to opiates or their combinations with other drugs (primarily ethanol). The ratio of male to female mortality was 3:1. Death after narcotic poisoning occurs at home in the majority of cases. The concentration of morphine/heroin in the blood and urine of victims varied within a very wide range. Acute renal failure, myoglobulinuremic nephrosis, and compression syndrome are not typical of acute narcotic poisoning. Use of immunotest for urinary morphine-heroin deserves further investigation. 相似文献