全文获取类型
收费全文 | 8981篇 |
免费 | 306篇 |
专业分类
各国政治 | 456篇 |
工人农民 | 413篇 |
世界政治 | 515篇 |
外交国际关系 | 270篇 |
法律 | 5723篇 |
中国共产党 | 3篇 |
中国政治 | 59篇 |
政治理论 | 1772篇 |
综合类 | 76篇 |
出版年
2020年 | 117篇 |
2019年 | 150篇 |
2018年 | 217篇 |
2017年 | 232篇 |
2016年 | 228篇 |
2015年 | 164篇 |
2014年 | 171篇 |
2013年 | 994篇 |
2012年 | 238篇 |
2011年 | 233篇 |
2010年 | 196篇 |
2009年 | 219篇 |
2008年 | 264篇 |
2007年 | 234篇 |
2006年 | 263篇 |
2005年 | 233篇 |
2004年 | 234篇 |
2003年 | 211篇 |
2002年 | 214篇 |
2001年 | 266篇 |
2000年 | 268篇 |
1999年 | 194篇 |
1998年 | 120篇 |
1997年 | 122篇 |
1996年 | 112篇 |
1995年 | 99篇 |
1994年 | 96篇 |
1993年 | 112篇 |
1992年 | 184篇 |
1991年 | 200篇 |
1990年 | 180篇 |
1989年 | 181篇 |
1988年 | 162篇 |
1987年 | 180篇 |
1986年 | 176篇 |
1985年 | 164篇 |
1984年 | 157篇 |
1983年 | 167篇 |
1982年 | 96篇 |
1981年 | 91篇 |
1980年 | 77篇 |
1979年 | 106篇 |
1978年 | 76篇 |
1977年 | 74篇 |
1976年 | 60篇 |
1975年 | 59篇 |
1974年 | 63篇 |
1973年 | 73篇 |
1972年 | 63篇 |
1968年 | 53篇 |
排序方式: 共有9287条查询结果,搜索用时 15 毫秒
971.
It is widely known that inhalation of the solvent dichloromethane can lead to severe intoxication. We report on a fatal accident of a 29-year-old painter. He had to remove the old chlorocaoutchoucpaint of two overflow pools adjoining an empty swimming pool by sand-blasting. After obviously having finished his work in the first pool the painter was found dead, lying on the floor of the second pool. Later an almost empty 10-kg-canister of a paint stripper (macerating agent) the main component of which was dichloromethane was found in the car of the painter. Blood samples of the corpse measured by head space gas chromatography and electron capture detection showed dichloromethane levels in the range of 513-773 micrograms/ml. 相似文献
972.
973.
974.
975.
This article addresses a concern increasingly being voiced in the donor establishment: fifty years of development assistance programs have failed to produce conclusive evidence that they can foster sustainable economic and social development in poor countries. The nature of donor programs is such that it emphasizes economic remedies and orients aid to finite projects. Yet recent evidence suggests that sustained development may be more a continued civic process whereby communities form their capacity to come to their own understandings about public ways of behaving and relating, whereby they develop their capacity to concert . This translates into a practical capability to pinpoint underlying problems, assess alternative approaches, and devise solutions most likely to be sustained. This micro capability may also have important macroeconomic implications in terms of institutional predictability and—through it—in terms of scale economies, transaction costs, transparency, incentive to innovate, and climate to implement public policies. The article suggests an alternative approach to development assistance and offers concrete recommendations to donors. 相似文献
976.
Paradoxically, the greater the national security threats, the more important the role of local policy in the United States. In this article we examine homeland security initiatives—particularly the tension between risk and vulnerability—and the governance dilemmas they pose for local communities. In contrast to the usual emphasis on coordination and capacity, we argue for conceptualizing local imperatives attendant to homeland security as collective action problems requiring the construction of local performance regimes. Performance regimes must engage three challenges: (1) to enlist diverse stakeholders around a collective local security goal despite varying perceptions of its immediacy; (2) to persuade participants to sustain their involvement in the face of competing demands, and (3) to create a durable coalition around performance goals necessary for reducing local vulnerability. Using these analytic categories casts local homeland security issues in strategic terms; it also encourages comparisons of local governance arrangements to respond to risk and vulnerability. 相似文献
977.
Bruno E. Viani 《Public Choice》2007,133(1-2):171-198
Data from utility privatization sales in 74 countries is analyzed to investigate why governments award monopoly rights, and how monopoly affects government revenue from these sales. Financially constrained governments are more likely to award monopoly rights. Interest groups and institutions are important. Increased importance of taxed business users reduces the probability of a government granting monopoly rights, while an increase in the importance of subsidized residential users has the opposite effect. Durable democracies and market-oriented governments are less likely to award monopoly rights. Monopolies increase government revenue by 66 percent. 相似文献
978.
Using campaign contributions to legislators as an indicator of member influence, we explore the impact of term limits on the distribution of power within state legislatures. Specifically, we perform a cross‐state comparison of the relative influence of party caucus leaders, committee chairs, and rank‐and‐file legislators before and after term limits. The results indicate that term limits diffuse power in state legislatures, both by decreasing average contributions to incumbents and by reducing the power of party caucus leaders relative to other members. The change in contribution levels across legislators in different chambers implies a shift in power to the upper chamber in states with term limits. Thus, the impact of term limits may be attenuated in a bicameral system. 相似文献
979.
A professor is brought before a secret tribunalin his law faculty for the purpose of decidingthe appropriateness of a student's grade. Thegrounds of the grade appeal are that theprofessor had taught critically instead ofpractically and that he had done so with anacademic bias and prejudice. He is also allegedto have taught philosophy rather than law. After many hours of examination andcross-examination as a defendant and as anexpert witness, the professor, Flink, begins adialogue with a spirit in an effort tounderstand the nature and identity of law. Flink comes to appreciate that law is adisplacing discourse rather than a structure ofcategories signified in an official writing. The analytic method familiar to officials incommon law jurisdictions, Flink comes tounderstand, excludes the experiential meaningsthat are manifested through unwritten gesturesand rituals. Officials embody signs withexperiential expectations and past assumptions.The embodiment of meaning brings life intolegal language. But such an embodiment isforgotten as officials decompose textualfragments and reported social events intoanalytic units. Legal analysis is so successfulthat officials even forget that they hadforgotten something so important as theembodiment of meaning.The professor and the spirit also ask whetherjustice is an `ought' and where one can locatesuch an `ought'. They conclude that there is astructure within which legal officials reason.The exteriority of the structure is anunwritten `ought' realm. But the structurepossesses a gap, which enters into such anunanalysable object-less realm. Analyticreasoning has assumed that reason can take anofficial only so far until she or he mustjourney outside the structure to anunanalysable realm of personal values. However, the embodiment of meanings alsoincorporates unwritten collective values ofwhich officials, precisely because of thesuccess of the analysis project in forgettingthat something was forgotten, have never beenconscious. It is such an unanalysable realmthat grounds or authorises the analyticproject. The exterior authorising origin of theanalytic units of the structure rests upon apossibility that requires faith on the part ofthe officials, a faith that there exists afoundation, radically different from theanalytic units, on the other side of thestructure. The officials can, at best, imagineor picture the authorising origin, located asit is in the unanalysable object-less realmexterior to the written language of thestructure. The imagined origin takes the `form'of a bodiless spirit. The officials (and theprofessor and spirit) are haunted by thepossibility that the structure of humanlyposited rules are ultimately authorised by aspirit. 相似文献
980.