全文获取类型
收费全文 | 15446篇 |
免费 | 682篇 |
专业分类
各国政治 | 816篇 |
工人农民 | 514篇 |
世界政治 | 1105篇 |
外交国际关系 | 633篇 |
法律 | 9955篇 |
中国共产党 | 1篇 |
中国政治 | 56篇 |
政治理论 | 2901篇 |
综合类 | 147篇 |
出版年
2020年 | 267篇 |
2019年 | 317篇 |
2018年 | 391篇 |
2017年 | 451篇 |
2016年 | 462篇 |
2015年 | 372篇 |
2014年 | 402篇 |
2013年 | 1746篇 |
2012年 | 431篇 |
2011年 | 422篇 |
2010年 | 379篇 |
2009年 | 389篇 |
2008年 | 408篇 |
2007年 | 389篇 |
2006年 | 386篇 |
2005年 | 329篇 |
2004年 | 364篇 |
2003年 | 329篇 |
2002年 | 314篇 |
2001年 | 584篇 |
2000年 | 526篇 |
1999年 | 427篇 |
1998年 | 190篇 |
1997年 | 172篇 |
1996年 | 146篇 |
1995年 | 165篇 |
1994年 | 176篇 |
1993年 | 171篇 |
1992年 | 291篇 |
1991年 | 322篇 |
1990年 | 286篇 |
1989年 | 300篇 |
1988年 | 261篇 |
1987年 | 273篇 |
1986年 | 279篇 |
1985年 | 253篇 |
1984年 | 216篇 |
1983年 | 237篇 |
1982年 | 159篇 |
1981年 | 147篇 |
1980年 | 113篇 |
1979年 | 208篇 |
1978年 | 131篇 |
1977年 | 117篇 |
1976年 | 105篇 |
1975年 | 113篇 |
1974年 | 135篇 |
1973年 | 129篇 |
1972年 | 106篇 |
1971年 | 95篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
31.
It is a central tenet of most contemporarytheories of justice that the badly-off have aright to some of the resources of the well-off.In this paper, I take as my starting point twoprinciples of justice, to wit, the principle ofsufficiency, whereby individuals have a rightto the material resources they need in order tolead a decent life, and the principle ofautonomy, whereby once everybody has such alife, individuals should be allowed to pursuetheir conception of the good, and to enjoy thefruits of their labour in pursuit of suchconception. I also endorse the value offairness, whereby the right person orinstitution makes the decision as to whether tobring about justice.I show that justice and fairness can besatisfied only if we all enjoy a combination ofprivate and collective rights over the world.In making that case, I shall argue that the setof ownership rights I advocate differs fromreadily available conceptions of restrictedprivate ownership in two important respects.First, it is such that in some circumstances,two individuals or more can have control rightsover the same property at the same time, not,as is standardly the case in legal systems, bycontracting with one another (through gifts andjoint purchase), but simply on grounds ofjustice. Second, it allows that, if necessary,property-owners be expropriated from theirproperty without compensation. 相似文献
32.
D J WILLIAMS WILLIAM B. STREAN ENRIQUE GARCIA BENGOECHEA 《Juvenile & family court journal》2002,53(2):31-41
This article discusses relevant literature on the potential benefits of sport, recreation, and leisure, and how these benefits relate to rehabilitation of juveniles. Many professionals involved in juvenile rehabilitation believe sport and recreation are beneficial adjuncts to treatment programming; however, it can be difficult to structure sport and recreation in ways that directly correspond to treatment goals. The purpose of this article is to provide insights for professionals working with juveniles on how sport and recreation programming can be an effective means of helping to achieve rehabilitation goals. Attention is given to approaches, particularly the Teaching Games for Understanding model (Bunker & Thorpe, 1982), which can be used to effectively link recreation and sport to the rehabilitation process. 相似文献
33.
Rebecca Emerson Stephen G. Hall Anna Zalewska-Mitura 《Economic Change and Restructuring》1997,30(2-3):75-90
With new technically advanced methods and computers at our disposal, the efficient market hypothesis is once again being debated. At the same time, we are witnessing an unprecedented growth in both existing and new financial markets. These new markets are often in economies which have just recently embraced free market economics; we term these stock markets infant markets. Such stock markets are obviously not efficient in allocating the supply of savings to productive capital. We do not test whether or not these infant markets are informationally efficient, but instead examine whether and how they are becoming more efficient. We propose modelling the excess returns of individual securities using a multi-factor model with time-varying coefficients and generalised auto-regressive conditional heteroskedastic (GARCH) errors. If the markets are becoming more informationally efficient or the agents are learning, we would expect this to manifest itself as the time-varying coefficients becoming more stable as time increases. We test our model using data on four Bulgarian shares. First, we estimate an AR(2) model and a GARCH-M(1,1) model for the shares. Then, we estimated our AR(2) model with time varying coefficients and GARCH type errors. We find varying levels of efficiency and varying speeds of movement towards efficiency within our sample of four shares. 相似文献
34.
35.
The enzyme activity of phosphoglucomutase (PGM) has been investigated in red cell haemolysates from 142 individuals and compared to the sub-type as determined by isoelectric focusing. The 10 phenotypes showed significant differences in PGM-activity which indicates that there is a correlation between the level of activity and the isolelectric point of homozygotes. No indication of silent alleles or alleles with reduced activity was found in this collective. 相似文献
36.
37.
The Tax Reform Act of 1986 rewrote the federal income tax code, bringing it closer to policy professionals' vision of what constitutes an equitable and efficient income tax. Research on tax compliance suggests the law might have affected taxpayer compliance in three ways: by reducing opportunities to overstate deductions, by changing perceptions of fairness, and by altering tax liabilities. Changes in taxpayer perceptions, attitudes, and noncompliance intentions were examined in three bodies of survey data, each containing pre-and post-reform data from independent samples of the same population. The results show an improved normative climate for taxpayer compliance and point to both the feasibility and the importance of examining the effects of substantive tax policies on taxpayer perceptions, attitudes, and behavioral intentions. 相似文献
38.
The formation of adequate mental health systems within prisons has accelerated as a result of successful class action lawsuits. Our recent national survey questioned all state correctional departments about the existence of standards in each system, compliance with such standards, prevalence of class action lawsuits involving the issue of providing adequate mental health services for inmates, issues related to consent decrees, available mental health resources within the correctional system, and the administrative structure of the mental health system. Our purpose was to identify those factors correlated with certified class action lawsuits involving issues related to mental health services. Twenty-one states were involved in such litigation. Only the presence of psychiatric hospitals operated by the department of corrections correlated with the presence of certified class action lawsuits involving mental health services. Prison systems larger than 15,000 inmates were at higher risk for such litigation. Smaller systems having psychiatric hospitals run by the state mental health agency appeared to be at less risk for such litigation. 相似文献
39.
Bone fragments were stored in water for 2 years at room temperature and investigated serologically using the following methods: Absorption-elution, extraction of blood group substances and immunohistochemistry (PAP). All 3 methods gave essentially specific results for fresh bone tissue but with putrid bone tissue unspecific reactions were found predominantly with the absorption-elution and PAP techniques. In contrast, more specific reactions were obtained from the extracts although they were much weaker. From this it can be concluded that pure physical binding plays a substantial role in the unspecific reaction between antibodies and bone material. It is suggested that the relevant physical properties are altered by putrification. 相似文献
40.
W D Haglund D G Reichert D T Reay 《The American journal of forensic medicine and pathology》1990,11(1):35-43
The Green River Murder Investigation in King County, Washington, is currently the longest active serial murder investigation in U.S. history. During its course, over 26 separate scenes with from one to five victims each have been processed. The experience of the authors is presented in order to acquaint other agencies with techniques of outdoor scene processing that have evolved during recovery of remains from Green River and other skeletal cases. 相似文献