全文获取类型
收费全文 | 25656篇 |
免费 | 709篇 |
专业分类
各国政治 | 958篇 |
工人农民 | 1065篇 |
世界政治 | 1963篇 |
外交国际关系 | 877篇 |
法律 | 15540篇 |
中国共产党 | 36篇 |
中国政治 | 194篇 |
政治理论 | 5431篇 |
综合类 | 301篇 |
出版年
2020年 | 336篇 |
2019年 | 364篇 |
2018年 | 503篇 |
2017年 | 599篇 |
2016年 | 650篇 |
2015年 | 481篇 |
2014年 | 535篇 |
2013年 | 2421篇 |
2012年 | 609篇 |
2011年 | 666篇 |
2010年 | 525篇 |
2009年 | 621篇 |
2008年 | 719篇 |
2007年 | 760篇 |
2006年 | 728篇 |
2005年 | 653篇 |
2004年 | 649篇 |
2003年 | 623篇 |
2002年 | 590篇 |
2001年 | 936篇 |
2000年 | 859篇 |
1999年 | 707篇 |
1998年 | 416篇 |
1997年 | 337篇 |
1996年 | 320篇 |
1995年 | 301篇 |
1994年 | 357篇 |
1993年 | 323篇 |
1992年 | 497篇 |
1991年 | 563篇 |
1990年 | 496篇 |
1989年 | 499篇 |
1988年 | 487篇 |
1987年 | 498篇 |
1986年 | 515篇 |
1985年 | 486篇 |
1984年 | 423篇 |
1983年 | 445篇 |
1982年 | 344篇 |
1981年 | 343篇 |
1980年 | 262篇 |
1979年 | 338篇 |
1978年 | 240篇 |
1977年 | 209篇 |
1976年 | 185篇 |
1975年 | 175篇 |
1974年 | 190篇 |
1973年 | 183篇 |
1972年 | 149篇 |
1971年 | 135篇 |
排序方式: 共有10000条查询结果,搜索用时 9 毫秒
141.
Distinctive blunt force injuries caused by a crescent wrench. 总被引:1,自引:0,他引:1
142.
The conflict and animosity that sometimes accompanies child custody disputes can give rise to the propagation of allegations of child sexual abuse. To characterize the magnitude of the problem, the present study attempted to determine whether and to what extent child sexual abuse allegations predominate in family court litigation. The entire one-year caseload of a county family court docket was systematically reviewed and coded. Methodical evaluation of 603 family court files yielded base rates of pertinent allegations and other information profiling the cases. The findings did not support the contention that sexual abuse allegations are commonplace in child custody disputes. Sexual abuse allegations were made in 2% of cases in which custody or access was contested and in only 0.8% of the cases overal. Implications of the findings for future research were discussed.The authors gratefully acknowledge the assistance of the Honorable William R. Campbell and Barbara Scott, Clerk of Court for the South Carolina Fifth Judicial Circuit, as well as the contributions of Angie Newton, Frank Robinson, and Kimberly Ellis in the data collection process. 相似文献
143.
144.
This study uses a structured vignette procedure to assess competency to make treatment decisions in two groups of adolescents, one at risk for institutional placement and the other a matched community sample. Scores on Factual Understanding (the ability to recall facts), Inferential Understanding (the ability to make inferences about those facts), and Reasoning (the ability to weigh risks and benefits of various treatment options and to make choices based on that reasoning) were compared. Results showed that while at-risk adolescents and their community, counterparts did not differ in their factual and inferential understanding abilities, the at-risk adolescents did significantly less well than the community adolescents in reasoning. This difference could not be fully explained by differences in verbal IQ. Girls, no matter what their risk status, scored higher than boys on the Reasoning scale. Implications for legal policies concerning adolescents are discussed. 相似文献
145.
146.
147.
James L. Bernat 《The Journal of law, medicine & ethics》2006,34(1):35-43
"Brain death," the determination of human death by showing the irreversible loss of all clinical functions of the brain, has become a worldwide practice. A biophilosophical account of brain death requires four sequential tasks: (1) agreeing on the paradigm of death, a set of preconditions that frame the discussion; (2) determining the definition of death by making explicit the consensual concept of death; (3) determining the criterion of death that proves the definition has been fulfilled by being both necessary and sufficient for death; and (4) determining the tests of death for physicians to employ at the patient's bedside to demonstrate that the criterion of death has been fulfilled. The best definition of death is "the cessation of functioning of the organism as a whole." The whole-brain criterion is the only criterion that is both necessary and sufficient for death. Brain death tests are used only in the unusual case in which a patient's ventilation is being supported. Brain death critics have identified weaknesses in its formulation. But despite its shortcomings, the whole-brain death formulation comprises a concept and public policy that make intuitive and practical sense and that has been well accepted by many societies. 相似文献
148.
Ethanol was determined by gas chromatography in a variety of tissues and body fluids secured at autopsy in 61 cases. The specimens tested included right and left heart blood, femoral blood, pericardial fluid, cerebrospinal fluid, vitreous humor, urine, stomach contents, and brain. Statistical analysis of the cases revealed no significant differences among the various blood sites tested. However, the variations in blood ethanol concentrations among the various sampling sites within each case were as follows: 40 cases showed differences of less than 25%; 16 cases revealed variability between 25% and 50%, 4 cases had differences exceeding 50%. In one case, satisfactory blood analyses could not be accomplished. The larger variances occurred especially in those instances in which stomach alcohol concentration was 0.50% or greater. In one case, the variability amongst the different blood sites exceeded 400% (femoral blood--0.043%, right atrium--0.070%, root of aorta--0.156%); the brain was 0.050%, and the stomach contents was 1.2%. For all 61 cases, variances in blood alcohol content among the different sampling sites in a single cadaver ranged from 1.8 to 428%. 相似文献
149.
Using an interrupted time-series design, this research note analyzes the long-term effect of Minnesota's sentencing guidelines on reducing unwarranted disparity in sentencing outcomes that fall within their scope of authority. Unwarranted disparity is defined as residual variation not attributable to legally mandated sentencing factors. Findings suggest that although the sentencing guidelines initially reduced disparity for the no prison/prison sentencing decision, inequality began to revert to preguideline levels as time passed. Further analysis revealed that the guidelines had a permanent impact on reducing disparities in decisions on the length of prison sentence. Overall we observed an 18% decline in disparity for the no prison/prison outcome and a 60% reduction in inequality for the judicial decision as to length of prison sentence. Two explanations for the reversionary trend in the no prison/prison series are highlighted. 相似文献
150.
Conclusion The Regulations appear to have reinforced the protection available to software producers under United Kingdom law. The provisions of the Software Directive and the Regulations are complex and not without significant inconsistencies which are likely to prove to be a source of litigation. The drafters of the Regulations chose, unlike many of its European partners, not to adopt the wording of the Software Directive but to write their own interpretation, adding an element of uncertainty to the law in this area, which is perhaps inevitable bearing in mind the linguistic problems of translating and interpreting any directive coupled with the ambiguity and omission of definitions of several key terms. More important, however, than any academic argument will be the practical impact of the new law and its effectiveness in achieving its aim. 相似文献