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   11588篇
  免费   610篇
各国政治   568篇
工人农民   411篇
世界政治   812篇
外交国际关系   361篇
法律   7667篇
中国共产党   1篇
中国政治   63篇
政治理论   2246篇
综合类   69篇
  2020年   206篇
  2019年   228篇
  2018年   267篇
  2017年   310篇
  2016年   305篇
  2015年   285篇
  2014年   267篇
  2013年   1219篇
  2012年   271篇
  2011年   282篇
  2010年   293篇
  2009年   308篇
  2008年   290篇
  2007年   287篇
  2006年   293篇
  2005年   282篇
  2004年   294篇
  2003年   268篇
  2002年   243篇
  2001年   461篇
  2000年   399篇
  1999年   342篇
  1998年   166篇
  1997年   120篇
  1996年   110篇
  1995年   134篇
  1994年   137篇
  1993年   132篇
  1992年   235篇
  1991年   234篇
  1990年   240篇
  1989年   234篇
  1988年   198篇
  1987年   213篇
  1986年   217篇
  1985年   233篇
  1984年   177篇
  1983年   192篇
  1982年   130篇
  1981年   123篇
  1980年   98篇
  1979年   152篇
  1978年   121篇
  1977年   89篇
  1976年   84篇
  1975年   91篇
  1974年   113篇
  1973年   107篇
  1972年   85篇
  1969年   72篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
121.
A split-ballot experiment shows that, when people are asked how interested they are in following political campaigns, their response depends not only on the order in which the question is asked, but also on the broader electoral context in which it is posed. When asked how interested they were in following the political campaigns immediatelyafter a question about whether or not they voted in the (1982) election, people were more likely to think they were interested in the campaign, especially if they claimed to have voted, than if they were asked about it immediatelybefore the question on whether or not they voted. This order effect, however, appears to depend onwhen the questions are asked. If asked within a few weeks after the election, there is little or no order effect. But later, as the memory of the campaign fades, the order of the questions makes a sizable difference in the results. This order effect also seems to be more pronounced among better-educated respondents, suggesting that they are more likely to feel pressured by a social norm to vote and to express an interest in political affairs, not only in real life, but in the survey interview as well. The paper concludes with a brief discussion of the implications for the design of the interview schedule used in the American National Election Studies.The research reported in this paper was supported by a grant from the National Science Foundation (SES81-11404).  相似文献   
122.
123.
124.
125.
126.
127.
128.
129.
130.
People die daily in the hospital. Mostly, they die because their illnesses were no longer treatable (natural death). Unfortunately, some people die an unnatural death, in particular, as the result of euthanasia. In contrast to the situation in most countries, in the Netherlands euthanasia is accepted by the courts under strict conditions. It can be very difficult for the legal authorities to establish whether a person has died from natural causes or from suicide, euthanasia, or murder. In addition to the pathologist and the lawyer, the toxicologist also has a number of problems in showing whether euthanasia has been carried out. These can consist of the following analytical problems: (a) interactions--the patients involved have frequently been receiving a large number of toxic and nontoxic drugs simultaneously; (b) identification--not all drugs administered are included in general screening procedures; (c) metabolites--a large number of metabolites may have accumulated toward the end of a long therapeutic regimen; and (d) determination--determination of quaternary muscle relaxants and their various metabolites, as well as other drugs, can be problematic. There are also toxicokinetic problems; because of poor kidney and liver function, low serum albumen, general malaise, and interactions between these factors and other drugs, the kinetics of a given drug can differ from normal. This makes it all the more difficult to determine whether the patient died from an accumulation of medication or from a so-called "euthanetic" drug mixture.(ABSTRACT TRUNCATED AT 250 WORDS)  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