全文获取类型
收费全文 | 16924篇 |
免费 | 1260篇 |
专业分类
各国政治 | 626篇 |
工人农民 | 596篇 |
世界政治 | 1283篇 |
外交国际关系 | 497篇 |
法律 | 12113篇 |
中国共产党 | 1篇 |
中国政治 | 131篇 |
政治理论 | 2847篇 |
综合类 | 90篇 |
出版年
2020年 | 391篇 |
2019年 | 428篇 |
2018年 | 503篇 |
2017年 | 550篇 |
2016年 | 561篇 |
2015年 | 483篇 |
2014年 | 523篇 |
2013年 | 1722篇 |
2012年 | 393篇 |
2011年 | 500篇 |
2010年 | 633篇 |
2009年 | 610篇 |
2008年 | 435篇 |
2007年 | 398篇 |
2006年 | 481篇 |
2005年 | 357篇 |
2004年 | 373篇 |
2003年 | 336篇 |
2002年 | 298篇 |
2001年 | 704篇 |
2000年 | 595篇 |
1999年 | 462篇 |
1998年 | 219篇 |
1997年 | 200篇 |
1996年 | 152篇 |
1995年 | 178篇 |
1994年 | 187篇 |
1993年 | 150篇 |
1992年 | 323篇 |
1991年 | 354篇 |
1990年 | 337篇 |
1989年 | 343篇 |
1988年 | 315篇 |
1987年 | 286篇 |
1986年 | 299篇 |
1985年 | 312篇 |
1984年 | 305篇 |
1983年 | 264篇 |
1982年 | 200篇 |
1981年 | 198篇 |
1980年 | 159篇 |
1979年 | 216篇 |
1978年 | 134篇 |
1977年 | 104篇 |
1976年 | 91篇 |
1975年 | 107篇 |
1974年 | 124篇 |
1973年 | 113篇 |
1972年 | 92篇 |
1971年 | 89篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
991.
992.
Leite FP Menegassi FJ Schwengber SP Raimann PE Albuquerque TK 《Forensic science international》2003,132(3):223-224
Allele frequencies for 09 STR autosomal loci (D3S1358, D5S818, D7S820, D8S1179, D13S317, D18S51, D21S11, FGA and VWA) included in the AmpFlSTR Profiler Plus were obtained from a sample of unrelated individuals from Rio Grande do Sul (southern Brazil). 相似文献
993.
Reisner AD McGee M Noffsinger SG 《International journal of offender therapy and comparative criminology》2003,47(1):58-70
The authors present the case of a man who was hospitalized after claiming that he was about to become a serial killer. The patient presented with extensive written homicidal fantasies and homicidal intentions without evidence of actual homicidal acts. In addition to routine assessments, hospital staff members used case conferences, psychological testing, outside forensic consultation, and a forensic review process to make decisions regarding diagnosis, treatment planning, and discharge. The patient was discharged after 8 months of inpatient treatment and was apparently free of homicidal impulses or symptoms of severe mental illness. A 2-year court commitment allowed for the enactment and potential enforcement of a discharge plan that was endorsed by the patient, the hospital, and community care providers. The authors review diagnostic and risk management issues. Comparisons with known features of typical serial killers are made. 相似文献
994.
Gunshot wounds in suicide cases are self-inflicted wounds. Self-inflicted wounds in suicide cases are usually caused by contact firing and are of great forensic significance. Evaluation of contact wound may be associated with difficulties if the bore gets obstruction prior to firing. This paper investigates the phenomenon and interprets the results of test firing conducted on 20% gelatine block at 10 degrees C, using .38 Special revolver with obstruction of a bullet in the bore. Test firings were conducted in three different muzzle-target contact conditions keeping the muzzle pressed against the gel block in each case. The physical evidence and the wound ballistic parameter namely bullet track, remaining velocity of the bullets and volume of permanent cavity have been studied. When compared with the results of contact firing conducted with the same firearm without having any bore obstruction under similar conditions, it has been found that the physical evidence and the wound ballistic parameters would be helpful for interpretation of such unusual incidents for forensic inference. 相似文献
995.
996.
997.
This article discusses the phenomenon of "context effects" by reviewing the findings and practices of a range of scientific fields, including astronomy, physics, biology, medicine, and especially the relevant research and theory from psychology. Context information, such as expectations about what one is supposed to see or conclude, has been found to have a small but relentless impact on human perception, judgment, and decision-making. The article then considers the vulnerability of forensic science practice to context effects, and concludes by suggesting that forensic science adopt practices familiar in other fields of scientific work, in particular blind or double-blind testing and also the use of evidence line-ups. 相似文献
998.
999.
1000.