全文获取类型
收费全文 | 736篇 |
免费 | 34篇 |
专业分类
各国政治 | 88篇 |
工人农民 | 58篇 |
世界政治 | 67篇 |
外交国际关系 | 43篇 |
法律 | 328篇 |
中国政治 | 23篇 |
政治理论 | 156篇 |
综合类 | 7篇 |
出版年
2023年 | 5篇 |
2022年 | 6篇 |
2021年 | 11篇 |
2020年 | 9篇 |
2019年 | 33篇 |
2018年 | 30篇 |
2017年 | 40篇 |
2016年 | 39篇 |
2015年 | 21篇 |
2014年 | 18篇 |
2013年 | 157篇 |
2012年 | 17篇 |
2011年 | 28篇 |
2010年 | 14篇 |
2009年 | 18篇 |
2008年 | 24篇 |
2007年 | 22篇 |
2006年 | 19篇 |
2005年 | 11篇 |
2004年 | 16篇 |
2003年 | 14篇 |
2002年 | 23篇 |
2001年 | 11篇 |
2000年 | 13篇 |
1999年 | 16篇 |
1998年 | 9篇 |
1997年 | 4篇 |
1996年 | 3篇 |
1995年 | 4篇 |
1994年 | 10篇 |
1993年 | 4篇 |
1992年 | 11篇 |
1991年 | 5篇 |
1990年 | 9篇 |
1989年 | 6篇 |
1987年 | 12篇 |
1986年 | 9篇 |
1985年 | 7篇 |
1984年 | 5篇 |
1983年 | 7篇 |
1982年 | 4篇 |
1981年 | 6篇 |
1979年 | 6篇 |
1978年 | 4篇 |
1975年 | 3篇 |
1973年 | 3篇 |
1972年 | 4篇 |
1970年 | 2篇 |
1967年 | 2篇 |
1966年 | 3篇 |
排序方式: 共有770条查询结果,搜索用时 531 毫秒
31.
In an attempt to learn more about the validity of the Offer Self-Image Questionnaire for Adolescents (OSQ), the 11 scale scores for 14 male and 26 female adolescent patients in a private psychiatric hospital were correlated with their scores on 13 of the 14 minnesota Multiphasic Personality Inventory (MMPI) Scales. Of the 144 correlations calculated, 27% were significant at least at the 0.05 level and 5% were significant at the 0.01 level. The OSQ seems to be measuring depression, anxiety, and self-devaluation as they affect emotional tone, mastery of external problems, psychopathology, and adjustment. Further work needs to be done with normal adolescents concerning the validity of the OSQ scales. Additional research on the Impulse Control and Social Relationship scales is especially needed to determine the exact meaning of these scales. A review of some of the pertinent literature shows that self-report methods are appropriate and efficient in clinical work and research with adolescents. A general comparison of the OSQ and the MMPI shows that the MMPI has the advantage of good validity scales and other statistical properties, while the OSQ appears more attractive because of its appropriateness for adolescents.Received Ph.D. in clinical psychology from the University of Bonn in West Germany. 相似文献
32.
33.
Two cases of sudden, unexpected death resulting from coronary artery dissection have been reported. Since sudden and unexpected death falls within medical examiners' jurisdiction, the systematic autopsy examination of such cases offers an opportunity to evaluate this entity as well as other rare causes of natural death. A review of the literature concerning the subject has been presented. 相似文献
34.
35.
The majority of analyses of the international trade in women focusses on the rôle of organised crime groups in the supply and delivery of women across borders and into the local sex trade. This paper (a) attempts to locate the demand for traded women in a broader analysis of changes in the political economy of developed studies and (b) more specifically situates the trade in women in relation to the new-found centrality of sex in the mainstream of popular culture. 相似文献
36.
The Fx5 Fibre Finder has been developed by Foster & Freeman Ltd to automatically search tape lifts for coloured fibres specified by the operator. Experiments and casework studies have been conducted to assess primarily the performance of the instrument but also, where possible, to compare it with manual searching. Tape lifts have always been manually searched at this laboratory and it is a laborious task. The use of a machine such as the Fx5 would release a scientist from many hours of low power microscopy to be free for other duties and therefore could be a valuable labour saving device in forensic textile examination. 相似文献
37.
Policy implications of climate forecasts for water resources management in the Pacific Northwest 总被引:1,自引:0,他引:1
The Columbia River Basin management system suffers from conflicts over water use and allocation, and vulnerability to climate variability that disrupt hydropower, fisheries, irrigation, water supply, and other vital activities. Climate forecasts have the potential to improve water resource management in this system supporting management decisions that decrease its vulnerability to droughts, floods, and other crises related to climate variability. This study shows that despite the potential utility, managers do not use climate forecasts except for background information. The barriers to managers' use of climate forecasts include low forecast skill, lack of interpretation and demonstrated applications, low geographic resolution, inadequate links to climate variability related impacts, and institutional aversion to incorporating new tools into decision making. To realize the potential of climate forecasts for water resources management, we recommend strategies that include technical improvements to the forecast products, and joint efforts between forecast producers and the management community to develop and demonstrate climate forecast applications through reciprocal and iterative education. 相似文献
38.
Jon Taylor 《北京周报(英文版)》2013,56(25):18-19
The Xi-Obama summit provides a chance for frank discussion on how to improve bilateral ties The meeting between President Xi Jinping and President Barack Obama at Sunnylands,the former Annenberg estate in Rancho Mirage,California,on June 7-8 was unprecedented in its relatively informal 相似文献
39.
40.