全文获取类型
收费全文 | 5015篇 |
免费 | 111篇 |
专业分类
各国政治 | 236篇 |
工人农民 | 151篇 |
世界政治 | 236篇 |
外交国际关系 | 157篇 |
法律 | 3681篇 |
中国政治 | 26篇 |
政治理论 | 592篇 |
综合类 | 47篇 |
出版年
2020年 | 68篇 |
2019年 | 71篇 |
2018年 | 101篇 |
2017年 | 109篇 |
2016年 | 123篇 |
2015年 | 56篇 |
2014年 | 88篇 |
2013年 | 444篇 |
2012年 | 120篇 |
2011年 | 179篇 |
2010年 | 112篇 |
2009年 | 100篇 |
2008年 | 152篇 |
2007年 | 159篇 |
2006年 | 142篇 |
2005年 | 125篇 |
2004年 | 160篇 |
2003年 | 152篇 |
2002年 | 137篇 |
2001年 | 203篇 |
2000年 | 171篇 |
1999年 | 140篇 |
1998年 | 36篇 |
1996年 | 33篇 |
1993年 | 39篇 |
1992年 | 87篇 |
1991年 | 112篇 |
1990年 | 118篇 |
1989年 | 119篇 |
1988年 | 128篇 |
1987年 | 110篇 |
1986年 | 104篇 |
1985年 | 99篇 |
1984年 | 85篇 |
1983年 | 72篇 |
1982年 | 36篇 |
1981年 | 37篇 |
1979年 | 49篇 |
1978年 | 52篇 |
1977年 | 37篇 |
1976年 | 32篇 |
1975年 | 35篇 |
1974年 | 44篇 |
1973年 | 46篇 |
1972年 | 43篇 |
1971年 | 52篇 |
1970年 | 54篇 |
1969年 | 40篇 |
1968年 | 42篇 |
1967年 | 30篇 |
排序方式: 共有5126条查询结果,搜索用时 15 毫秒
171.
Trivedi R Chattopadhyay P Kashyap VK 《The American journal of forensic medicine and pathology》2002,23(2):191-196
A new method for better recovery of DNA suitable for amplification of hypervariable loci from fragments of teeth, consisting of two steps-scraping and aspiration, and extensive decalcification-is reported. Higher yields of high molecular weight DNA were obtained from the root, pulp, and crown of all kinds of 120 teeth, irrespective of gender, age, and source of teeth. HLA DQA1, 5 poly markers (LDLR, GYPA, HBGG, D7S8, and Gc), and other 12 short tandem repeat loci (HPRTB, F13B, LPL, D13S317, D7S820, D5S818, D21S11, D18S51, FGA, D8S1179, D3S1358, and vWA) could be successfully amplified and typed from recovered DNA. 相似文献
172.
Singhal V Cebeci BO Hemphill CM Heyman GF Kohn SM Mendelsohn S 《Tort & insurance law journal》2002,37(2):601-620
This article addresses important developments in the field of medicine and law during the period of September 2000 through August 2001. It does not discuss every reported case or piece of legislation but surveys some of the more significant developments in the medicine and law arena. 相似文献
173.
The content of ethanol and acetaldehyde in the limbic cortex and reticular formation of the brain was measured by gas-liquid chromatography in lethal ethanol poisoning. The content of acetaldehyde was significantly increased in the gyrus cinguli of the brain. Lethal poisonings occurred during any stage of ethanol intoxication. The data characterizing individual ethanol tolerance were obtained, which can be used for differential diagnosis of ethanol poisoning in practical forensic medicine. 相似文献
174.
A method for identifying the group appurtenance of biological objects from subjects suffering from various diseases is developed. The method can be used in examination of putrefactive objects (blood, secretions, hair, etc.) and in cases when the group appurtenance cannot be identified by other methods. 相似文献
175.
The morphology of adrenals was studied in cases of death from total supercooling. The intensity and terms of response are different in different morphofunctional zones of the adrenal cortex. Presumably, the terms and intensity of responses of various portions of the adrenal cortex reflect the specific features of their function regulation. 相似文献
176.
Eleven cases with migration (escape) of catheters, inserted into subclavian veins, into the vascular bed, are analyzed by the results of forensic medical evaluations. Expert evaluation of aftereffects of the complications caused by flaws in medical care is made. Suggestions are made on evaluation of the severity of harm inflicted to health in such cases and the criteria of such evaluations are offered. 相似文献
177.
178.
Solokhin AA Gaĭvoronskaia VI Kandaurov RV Persichkin AA 《Sudebno-meditsinskaia ekspertiza》2002,45(5):5-7
The article presents the results of an examination of the dry residue of liquor crystallograms (DRLC) using infrared spectroscopy technique. 36 spectrograms were studied. Elements of similarity and difference were revealed in the spectrograms of organic substance (antifreeze, sodium cyclamate and fatty tissue), of DRLC of the crystal-forming matter CuCl(2)x2H(2)0, of DRLC of a live person and cadaveric liquor (with no brain injury in respective case histories), of DRLC of liquor of live persons with a brain injury, of DRLC of liquor of persons who died of a brain injury and of persons who died of other causes. 相似文献
179.
Pavlov IuV 《Sudebno-meditsinskaia ekspertiza》2002,45(5):26-28
The paper describes specific morphological features of hairs from the head, beard, chest, axilla, pubis of the native population of Syria, India, Lebanon, Jordan, Yemen, Nepal, Palestine, Bahrain, Iraq and some residents of the Eastern Europe (Russians, Belorussians, Ukrainians). The hairs were studied macroscopically and microscopically (light microscopy). Digital data on hair thickness and number of lines of cuticula pattern were analysed using methods of variance statistics. Original information on some macro- and microscopic characteristics of hair has been obtained for citizens of the above countries. 相似文献
180.