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   986篇
  免费   25篇
各国政治   57篇
工人农民   16篇
世界政治   45篇
外交国际关系   48篇
法律   322篇
中国共产党   51篇
中国政治   109篇
政治理论   113篇
综合类   250篇
  2024年   1篇
  2023年   7篇
  2022年   4篇
  2021年   17篇
  2020年   27篇
  2019年   17篇
  2018年   17篇
  2017年   27篇
  2016年   21篇
  2015年   24篇
  2014年   34篇
  2013年   83篇
  2012年   42篇
  2011年   64篇
  2010年   81篇
  2009年   77篇
  2008年   85篇
  2007年   89篇
  2006年   56篇
  2005年   73篇
  2004年   39篇
  2003年   29篇
  2002年   26篇
  2001年   16篇
  2000年   6篇
  1999年   1篇
  1998年   1篇
  1997年   6篇
  1996年   4篇
  1995年   2篇
  1994年   1篇
  1993年   3篇
  1992年   4篇
  1991年   4篇
  1990年   3篇
  1989年   6篇
  1988年   3篇
  1987年   3篇
  1986年   1篇
  1985年   1篇
  1983年   3篇
  1982年   1篇
  1973年   1篇
  1965年   1篇
排序方式: 共有1011条查询结果,搜索用时 15 毫秒
51.
政治文明建设与公众参与是有机统一的,政治文明的发展要求不断地扩大公众的参与。不断提高公众参与意识和健全公众参与机制,推动政治文明的建设和发展。  相似文献   
52.
对公安院校警体教学改革的研究与探讨   总被引:1,自引:0,他引:1  
在加快改革开放和发展社会主义市场经济的新形势下,公安工作面临的形势更加严峻,任务更加艰巨、繁重。因此,对警察的身体素质和警务实战技能提出了越来越高的要求。公安院校作为培养未来警察的重要基地,警体教学应贴近公安工作实际。强化课程和教材建设,优化教学整体结构,精选教学内容。进一步建立和完善以增强学生体质,提高体能为基础、掌握警体技能为重点、强化实战运用能力为目标的教学训练体系。使警体教学为增强公安队伍战斗力发挥更大的作用。本文就有关警体课程和教学训练中存在的一些问题进行探讨,目的是为警体教学的改革提供参考。  相似文献   
53.
A method for the selenium determination in a mother and her child's hair using palladium as a chemical modifier was optimized. The sample was digested with nitric acid and hydrogen peroxide and diluted to 5 ml. To achieve complete mineralization the samples were ashed at 1200 degrees C in the presence of palladium as a chemical modifier. The optimum atomization temperature was 1900 degrees C. The precision and accuracy of the method were studied using the reference material CRM 397. Results of calibration using aqueous standards and the standard addition method were compared. The method was applied to the selenium determination in 30 samples of the mother's and child's hair. The levels found were 0.54 +/- 0.34 microgram/g for mother's hair and 0.77 +/- 0.25 microgram/g for child's hair.  相似文献   
54.
55.
We describe the gross and microscopic neuropathological changes in the brain of a 17-year-old male who died 4 days after being poisoned with cyanide. Previous reports indicate that following cyanide intoxication, the brain develops diffuse hypoxic/ischemic changes, predominantly of the basal ganglia. The case we describe here had similar features but in addition showed striking laminar necrosis of the cerebral cortex. This finding in cyanide poisoning has been previously demonstrated by neuroimaging, but not pathologically.  相似文献   
56.
A total of 201 males from Somalia were typed for the Y-chromosome STRs DYS19, DYS385a/b, DYS389-I, DYS389-II, DYS390, DYS391, DYS392, DYS393, DYS437, DYS438 and DYS439 with the PowerPlex Y kit (Promega). A total of 96 different haplotypes were observed and the haplotype diversity was 0.9715. The number of unique haplotypes was 71 while the most common haplotype was observed 24 times.  相似文献   
57.
A qualitative and quantitative analytical method was developed and validated for the determination of 49 licit and illicit drugs in oral fluid. Small oral fluid samples, volume 1mL, were collected from volunteers using a modified Omni-Sal device and the analytes were extracted from an oral fluid/buffer mixture using a single Bond Elut Certify solid phase extraction cartridge. Liquid chromatography-tandem mass spectrometry (LC-MS-MS) and gas chromatography-repetitive full scan mass spectrometry (GC-MS) were used in parallel to analyze the extracts for the targeted drugs. Extracts were analyzed by GC-MS in their underivatized form and as their pentafluoropropionyl derivatives. Deuterated internal standards were used for quantification of drugs of abuse by LC-MS-MS to minimize matrix effects. Methadone-d(9) and tumoxetine were used as the internal standards for quantification of non-derivatized and derivatized analytes respectively by GC-MS. Linearity was demonstrated over the range 5-200 ng/mL and limits of detection were less than 4 ng/mL for each drug analyzed. The method demonstrated acceptable recoveries for most of the analytes and good intra- and inter-day precision. Acquisition of data by repetitive full scan GC-MS allows the addition of further analytes to the target menu.  相似文献   
58.
A total of 185 unrelated Danish males were typed for the Y-chromosome STRs DYS19, DYS385a/b, DYS389-I, DYS389-II, DYS390, DYS391, DYS392, DYS393, DYS437, DYS438 and DYS439 using the kits PowerPlex Y (Promega), ReliaGene Y-Plex 6 and ReliaGene Y-Plex 5 (Reliagene Technologies). A total of 163 different haplotypes were observed and among these, 144 haplotypes were unique. The gene diversity was 0.9985. In DYS392, a variant allele migrating as a 10.2 allele was observed. Sequencing of the allele showed a deletion upstream the repeated area.  相似文献   
59.
加强学生思想政治教育势在必行。我校思想政治教育存在"两课"教学与学生思想实际脱节,学管工作方法滞后,与学生沟通少等问题。构建思想政治教育模式的具体做法包括:实行思想政治教育辅导员制,采取观察法、调查法、反馈法、实践法等。  相似文献   
60.
Nine STRs loci have been typed in a sample from Córdoba (Argentina).  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