首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   13196篇
  免费   1228篇
各国政治   550篇
工人农民   449篇
世界政治   939篇
外交国际关系   389篇
法律   9782篇
中国共产党   1篇
中国政治   90篇
政治理论   2148篇
综合类   76篇
  2021年   65篇
  2020年   375篇
  2019年   383篇
  2018年   462篇
  2017年   523篇
  2016年   536篇
  2015年   491篇
  2014年   481篇
  2013年   1403篇
  2012年   391篇
  2011年   454篇
  2010年   585篇
  2009年   542篇
  2008年   343篇
  2007年   328篇
  2006年   396篇
  2005年   277篇
  2004年   265篇
  2003年   259篇
  2002年   236篇
  2001年   466篇
  2000年   374篇
  1999年   313篇
  1998年   154篇
  1997年   131篇
  1996年   115篇
  1995年   139篇
  1994年   144篇
  1993年   118篇
  1992年   222篇
  1991年   238篇
  1990年   223篇
  1989年   235篇
  1988年   208篇
  1987年   180篇
  1986年   210篇
  1985年   226篇
  1984年   224篇
  1983年   192篇
  1982年   154篇
  1981年   132篇
  1980年   130篇
  1979年   154篇
  1978年   97篇
  1977年   80篇
  1976年   67篇
  1975年   71篇
  1974年   77篇
  1973年   64篇
  1971年   56篇
排序方式: 共有10000条查询结果,搜索用时 7 毫秒
1.
Fatal fall from a height initiated with a swinging motion on the sagittal plane of the victim's body is examined. Method of analytical mechanics is adopted to establish the functional relations between the swinging angle of the body and the force needed to sustain the body until release, and the amount of the horizontal displacement that would occur after release. The analysis is applied to support an expert opinion presented in a criminal court in which two accused were convicted of murder for dropping a female victim from a bridge. The results indicate that it is unlikely for the body to locate as recorded by the police investigation report in the case. This study demonstrates that a straightforward mechanical analysis can be utilized to examine uncommon falling scenarios.  相似文献   
2.
3.
In 1991 the FCC implemented a price cap plan for local exchange carriers' interstate access service designed to deal with the regulatory boundaries problem arising from the breakup of AT&T in 1984. The experience with the price cap plan demonstrates the difficulty of predicting productivity growth accurately and makes clear that regulators cannot depend upon a pure price cap plan to keep prices within a reasonable range of costs. With periodic reviews to readjust plan parameters, however, a price cap plan can maintain the rate-of-return close to the target rate-of-return without diminishing the price cap plan's incentives for efficient production. A simple method of recalculating the X-factor based on the rate-of-return over the previous three years worked well in simulations. If this procedure had been used over the price cap period 1991 to 2000, prices would have been 20 percent lower and expenditures on LECs' telecommunications service subject to a price cap would have been $3.8 billion lower.  相似文献   
4.
Die von Deutschland nach Art. 59 Abs. 2 GG ratifizierten europ?ischen und internationalen übereinkommen zum Denkmal- und Kulturgüterschutz müssen in nationales Recht transformiert werden. W?hrend die L?nder im Rahmen ihrer Kompetenz (Art. 30, 70, 83 GG) Denkmalschutzgesetze erlassen haben, hat der Bund in einschl?gigen Gesetzen wie dem Bundeswaldgesetz den Denkmalschutz bisher nicht berücksichtigt. Dabei ist bei einem Waldanteil von 30% der Wald mit seinen historischen Kulturlandschaften und seinem Waldboden als Archiv der Natur- und Kulturgeschichte von besonderer Bedeutung. Da Deutschland 60 Jahre nach Kriegsende endlich auch ausdrücklich ein Kulturstaat werden soll, ist es an der Zeit, dass die Belange des Denkmalschutzes auch im Bundeswaldgesetz (z.B. §§ 1, 2, 9 oder 11 BWaldG) berücksichtigt werden. Einige Verpflichtungen zum Denkmal- und Kulturgüterschutz sind heute ohnehin bereits V?lkergewohnheitsrecht (Art. 25 GG).  相似文献   
5.
The present study measured the existence of traumatic stress symptomatology as reported by certified law enforcement officers within the State of Delaware. A questionnaire was devised which documented age, sex, race, education, years of service, marital status, children, rank, position, and shift work. The questionnaire was divided into parts which assessed the exposure and the frequency of specific traumatic incidents experienced in the line of duty, and the frequency of experienced traumatic symptomatology criteria: re-experiencing, numbing, and arousal.  相似文献   
6.
7.
This article explores the influence that state finance has had on the Romanian party system by examining the entry and exit of parties throughout the period of 1990 – 2004 and focusing on the number of parties that gained representation in the parliament as well as the party incumbency rate. I find that state finance has had a limited influence on the party system as a whole but has been influential for specific parties. I argue that the influence of state finance partly depends on when the system was introduced. In developing party systems, the influence of state finance on individual parties is more differential.  相似文献   
8.
Der folgende Beitrag befasst sich mit Rechtsfragen, die sich bei einer Inanspruchnahme von naturschutzrechtlichen Kompensationsfl?chen im Sinne von § 19 BNatSchG durch ein sp?teres Vorhaben ergeben k?nnen. Im Mittelpunkt der Betrachtung steht das Verh?ltnis der Kompensationsverpflichtungen der Vorhabenstr?ger. Der Autor spricht sich dafür aus, dass in bestimmten Konstellationen die Kompensationsverpflichtung des Ersteingriffverursachers endet und an ihre Stelle die Kompensationspflicht des Tr?gers des zeitlich nachfolgenden Vorhabens tritt.  相似文献   
9.
The economics of the Holocaust is a many‐facetted subject that is an integral part of the Holocaust's history. This paper describes some of the results of the new research since 1990 and discusses the economic rationalities employed by the perpetrators in despoiling the Jews. Economic considerations accompanied the timing and pace of the expropriation of Jewish assets and their “Aryanization.” The new research also shows that there was widespread collaboration in the expropriation of the Jews by private interests both inside Germany and in German‐controlled Europe and that networks of bureaucrats and private interests joined to achieve Nazi goals. The combination of expropriation and mass murder was one of the aspects of the Holocaust that made it unique.  相似文献   
10.
This article tests cross-nationally the minority group threat thesis that public sentiments toward repressive crime-control policies reflect conflicted racial and ethnic relations. Using multiple data sets representing France, Belgium, the Netherlands, East and West Germany, Italy, Luxembourg, Denmark, Great Britain, Greece, Spain, Finland, Sweden, Austria, Canada, Ireland, and Portugal, we examine whether racial and ethnic intolerance—animus, resentments, or negative sentiments toward minorities—predicts greater support for the death penalty. Our results reveal that the respondents were significantly more likely to express support for capital punishment if they were racially or ethnically intolerant while controlling for other covariates of public opinion. These findings indicate that the link between support for capital punishment and racial and ethnic animus may occur universally in countries with conflicted racial and ethnic relations.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号