全文获取类型
收费全文 | 16599篇 |
免费 | 503篇 |
专业分类
各国政治 | 1045篇 |
工人农民 | 660篇 |
世界政治 | 1268篇 |
外交国际关系 | 711篇 |
法律 | 9543篇 |
中国共产党 | 2篇 |
中国政治 | 184篇 |
政治理论 | 3547篇 |
综合类 | 142篇 |
出版年
2020年 | 189篇 |
2019年 | 228篇 |
2018年 | 334篇 |
2017年 | 370篇 |
2016年 | 386篇 |
2015年 | 322篇 |
2014年 | 360篇 |
2013年 | 2013篇 |
2012年 | 372篇 |
2011年 | 478篇 |
2010年 | 387篇 |
2009年 | 413篇 |
2008年 | 439篇 |
2007年 | 446篇 |
2006年 | 430篇 |
2005年 | 355篇 |
2004年 | 381篇 |
2003年 | 412篇 |
2002年 | 318篇 |
2001年 | 612篇 |
2000年 | 547篇 |
1999年 | 493篇 |
1998年 | 249篇 |
1997年 | 191篇 |
1996年 | 194篇 |
1995年 | 175篇 |
1994年 | 195篇 |
1993年 | 176篇 |
1992年 | 285篇 |
1991年 | 310篇 |
1990年 | 304篇 |
1989年 | 277篇 |
1988年 | 311篇 |
1987年 | 333篇 |
1986年 | 318篇 |
1985年 | 298篇 |
1984年 | 282篇 |
1983年 | 276篇 |
1982年 | 175篇 |
1981年 | 162篇 |
1980年 | 152篇 |
1979年 | 220篇 |
1978年 | 171篇 |
1977年 | 139篇 |
1976年 | 125篇 |
1975年 | 144篇 |
1974年 | 138篇 |
1973年 | 133篇 |
1972年 | 111篇 |
1971年 | 111篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
61.
62.
Comparison of a suspected biter's dental arches with the patterned injury of a bite mark is especially difficult when the bite occurs in an anatomic location with a small radius of curvature or with complex or compound curves. The authors present two case reports in which human skin was used as a template for the reproduction of a bite. In one case the victim's skin was used; in the other, the skin of a anatomically similar person was used. The use of inked dental casts, photography, and transparent overlays significantly reduced the errors common to analysis of bite marks in these highly curved areas. 相似文献
63.
Identification of the driver in two-rider motorcycle accidents. Inguinal contusion-laceration as an indication of the driver 总被引:1,自引:0,他引:1
H Shiono A Akane K Matsubara K Tanabe S Takahashi 《The American journal of forensic medicine and pathology》1990,11(3):190-192
In motorcycle accidents involving two riders, medicolegal identification of the driver is necessary when one or both riders die. It is particularly important in the latter case, because the survivor almost always insists that he or she was not driving. One characteristic injury that distinguishes the driver from the passenger is inguinal contusion-laceration (accompanied internally by pelvic fracture). This injury, caused by collision of the pelvis with the fuel tank, identifies the driver. 相似文献
64.
65.
The Department of Defense has taken steps in recent years to improve outcomes for victims of domestic violence who reside on military installations. In 2000, the Defense Task Force on Domestic Violence was established, a military‐civilian group of experts charged with improving the military's effectiveness in addressing domestic violence in the Armed Forces in a variety of areas including offender accountability, coordination between military and civilian communities, and changing the military climate around domestic violence. This article will provide an overview of the Task Force, its work during the past three years, and its recommendations. 相似文献
66.
Recent major shifts in US military thinking, creating a new low-intensity conflict (LIC) doctrine, have resulted already in significant changes in organization, mission definition, force structure and budgetary allocation. These changes have come about because American leadership recognizes that the process of deindustrialization has produced a vulnerable, highly integrated and interdependent global economic system. This system of economic rationalization is susceptible to anti-western disruptions because of the instability produced by rapid social change, a consequence of the competition from the newly industrialized nations. LIC capability is viewed as a necessary means for dealing with disruptions. 相似文献
67.
68.
William V. Pelfrey Jr. 《Journal of criminal justice》2007,35(3):313
Although law enforcement agencies across the nation have assumed part of the responsibility in the fight against terrorism, significant confusion exists as to the role of local law enforcement. While some agencies have taken steps towards terrorism prevention, little data has been collected on which agencies have taken the greatest steps, how those agencies have changed, and how other agencies should direct their activity. This case study of law enforcement census data from a single state considered variations in terrorism preparedness and predictors of preparedness. Agency size, presence of funding, and other variables significantly predict levels of terrorism preparedness. Important policy implications such as the distribution of funding and which agencies should be working towards terrorism preparedness are discussed. 相似文献
69.
70.
On the one hand the following case demonstrates the problems of finding a dead body in the bathroom and on the other hand the importance of postmortem x-ray examinations. The corpse of an 65-year-old woman was discovered in her bath tub. At the body's feet there was a hair dryer. Investigations concerning murder were negative, circumstances appeared to be unsuspicious. That was why a postmortem examination was not performed. -4 years later murder had to be considered. After manual strangling the deceased and the hair dryer were layed into the bath tub. The corpse was exhumed and taken to a forensic autopsy. It was found that the hyoid bone and the superior horn of the thyroid cartilage were both fractured on the right. Damages caused by the preparation itself were excluded by using serial roentgenographs. These observations in combination with histological findings and the results of further investigations convincingly supported the suspicion of strangling by hand. 相似文献