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   8421篇
  免费   221篇
各国政治   407篇
工人农民   317篇
世界政治   679篇
外交国际关系   383篇
法律   4754篇
中国政治   88篇
政治理论   1947篇
综合类   67篇
  2023年   40篇
  2021年   67篇
  2020年   104篇
  2019年   171篇
  2018年   212篇
  2017年   203篇
  2016年   206篇
  2015年   142篇
  2014年   223篇
  2013年   967篇
  2012年   241篇
  2011年   225篇
  2010年   192篇
  2009年   222篇
  2008年   246篇
  2007年   249篇
  2006年   229篇
  2005年   206篇
  2004年   241篇
  2003年   207篇
  2002年   176篇
  2001年   361篇
  2000年   328篇
  1999年   238篇
  1998年   117篇
  1997年   115篇
  1996年   89篇
  1995年   92篇
  1994年   91篇
  1993年   82篇
  1992年   157篇
  1991年   170篇
  1990年   150篇
  1989年   164篇
  1988年   134篇
  1987年   153篇
  1986年   125篇
  1985年   129篇
  1984年   131篇
  1983年   115篇
  1982年   89篇
  1981年   102篇
  1980年   57篇
  1979年   87篇
  1978年   58篇
  1975年   53篇
  1974年   61篇
  1973年   71篇
  1972年   44篇
  1971年   38篇
排序方式: 共有8642条查询结果,搜索用时 15 毫秒
41.
42.
43.
In motorcycle accidents involving two riders, medicolegal identification of the driver is necessary when one or both riders die. It is particularly important in the latter case, because the survivor almost always insists that he or she was not driving. One characteristic injury that distinguishes the driver from the passenger is inguinal contusion-laceration (accompanied internally by pelvic fracture). This injury, caused by collision of the pelvis with the fuel tank, identifies the driver.  相似文献   
44.
45.
Employing a critical-mass theory of collective action, this article models the emergence of cooperation among state attorneys general in litigation against the tobacco industry. These suits were not independent events, nor was cooperation based on prior agreement among the attorneys general. Rather, cooperation emerged over time as a result of interdependent decision-making, with early lawsuits increasing the likelihood of later suits. The model emphasizes the "production function" of the collective good and the heterogeneity of the attorneys general and their political environments as keys to the development of cooperation. The model is tested against data using event history analysis.  相似文献   
46.
47.
Ministerial reshuffles are complex exercises requiring careful handling. A frequent occurrence in British government, their significance is usually seen in political terms. Prime Ministers attach great importance to maximizing the political advantages to be gained from them. This factor is the chief determinant of their logistics, the principal characteristics of which are secrecy in advance and the speed with which ministerial changes are executed. These features - as much as the frequency of ministerial changes per se - may disrupt the policy process and have serious implications for minister-civil servant power relations. Such problems could be alleviated by giving ministers advance notice of changes of post. The institution of a process of ministerial handovers would strengthen the position of incoming ministers by making them less dependent on their officials, upon whom they rely heavily for initial briefing at present.  相似文献   
48.
Misidentification syndromes have been studied from a variety of perspectives, including phenomenological, biological, and nosological approaches. More recently, misidentification syndromes have been studied from a psychiatric-legal perspective, especially with regards to the problem of dangerousness. Capgras syndrome and other syndromes of misidentification can lead to hostile mood and subsequent physical violence. Little attention has so far been devoted to children as the objects of the psychotic person's misidentification delusion(s). We provide a review of cases from the anglophonic literature that have children as the misidentified objects, add three new cases, and then discuss the relationship between misidentification and potential harm to these children.  相似文献   
49.
A case of the sudden death of a 14-month-old girl due to massive hemorrhage in a primitive neuroectodermal tumor (PNET) is presented along with a review of the relevant literature. PNET is a rare, malignant brain neoplasm occurring predominantly in children.  相似文献   
50.
Much attention has been paid to the nature of parent-adolescent relationships, with a frequent conclusion being that it is a time of marked disagreement between parents and their adolescents. However, other literature suggests that this time is not inherently conflictual. The purpose of this study was to examine agreement and disagreement between mothers, fathers, and adolescents on specific issues. Then, adolescent adjustment was assessed, and the degree to which it was a function of congruence with parents was examined. A modified version of the Issues Checklist was used to measure intrafamily agreement; the Revised Behavior Problem Checklist and the Harter Scale of Child's Actual Competence were completed by adolescents' social studies teachers to assess adolescent functioning. Relative to their parents, adolescents reported that they should make more decisions alone, while both mothers and fathers reported that decisions should be made jointly among all family members. Only father-adolescent congruence was found consistently to be related to adolescent functioning. Possible explanations for the present results and relevant issues pertaining to family agreement are discussed.  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