全文获取类型
收费全文 | 12133篇 |
免费 | 1254篇 |
专业分类
各国政治 | 456篇 |
工人农民 | 403篇 |
世界政治 | 892篇 |
外交国际关系 | 311篇 |
法律 | 9164篇 |
中国共产党 | 1篇 |
中国政治 | 87篇 |
政治理论 | 1995篇 |
综合类 | 78篇 |
出版年
2020年 | 340篇 |
2019年 | 353篇 |
2018年 | 398篇 |
2017年 | 460篇 |
2016年 | 473篇 |
2015年 | 431篇 |
2014年 | 425篇 |
2013年 | 1263篇 |
2012年 | 276篇 |
2011年 | 369篇 |
2010年 | 541篇 |
2009年 | 496篇 |
2008年 | 289篇 |
2007年 | 257篇 |
2006年 | 362篇 |
2005年 | 255篇 |
2004年 | 247篇 |
2003年 | 233篇 |
2002年 | 208篇 |
2001年 | 443篇 |
2000年 | 360篇 |
1999年 | 305篇 |
1998年 | 156篇 |
1997年 | 140篇 |
1996年 | 111篇 |
1995年 | 142篇 |
1994年 | 150篇 |
1993年 | 126篇 |
1992年 | 221篇 |
1991年 | 245篇 |
1990年 | 228篇 |
1989年 | 240篇 |
1988年 | 215篇 |
1987年 | 181篇 |
1986年 | 211篇 |
1985年 | 231篇 |
1984年 | 225篇 |
1983年 | 203篇 |
1982年 | 153篇 |
1981年 | 139篇 |
1980年 | 134篇 |
1979年 | 157篇 |
1978年 | 95篇 |
1977年 | 85篇 |
1976年 | 70篇 |
1975年 | 72篇 |
1974年 | 81篇 |
1973年 | 68篇 |
1972年 | 57篇 |
1971年 | 59篇 |
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
31.
As an instrument for governance, summitry is a novel structure for the management of contemporary hemispheric regionalism in the Americas. Such regionalism is a clear case of the "structuralist paradox" of international cooperation. This article attempts to explain the particular asymmetric regionalism in the Americas by using the concept of cooperative hegemony. The underlying hypothesis is that the U.S. government, since 1994, has pursued a strategy of cooperative behavior, at least in regard to power sharing, in two specific phases of hemispheric regionalism: agenda setting and institutionalization. This study tests the hypothesis through a content analysis of the main documents produced at the Miami, Santiago, and Quebec summits, then relates these findings to the progress of institutionalization from 1994 to 2003. 相似文献
32.
33.
34.
John D. Jackson 《Journal of law and society》2003,30(2):309-337
This article considers the claim in the government's White Paper, Justice for All , to put victims and witnesses at the heart of the criminal justice system and argues that there is an unresolved tension within the paper between instrumentalist crime control concerns and intrinsic concerns for the rights of victims and witnesses. It is argued that many of the proposals now contained in the latest Criminal Justice Bill are so preoccupied with rebalancing the system away from offenders that they risk doing injustice to defendants with little tangible benefit to victims and witnesses in terms of rights and remedies. 相似文献
35.
A fatality following ingestion of the drug baclofen (Lioresal) is described. Baclofen was identified in urine by gas chromatography/mass spectrometry. After derivatization with trinitrobenzene sulfonic acid, baclofen was quantitated in serum and urine by high-performance liquid chromatography. The concentration of baclofen was 17 mg/L in serum and 760 mg/L in urine collected approximately 12 h after the overdose. To our knowledge, this is only the second reported fatality involving a baclofen overdose. The previous case did not include quantitation of baclofen in any biological fluid. 相似文献
36.
37.
38.
The results of additional validation studies of a sensitive microplate hemagglutination assay for ABO reverse grouping of bloodstains are presented. The results of the validation study demonstrate the reliability of the microplate assay for use in routine serological casework. Based on these studies, the microplate assay has now replaced the Lattes crust test for ABO reverse grouping of bloodstains in the FBI Laboratory. 相似文献
39.
D.S.T Lo T.C Chao S.E Ng-Ong Y.J Yao T.H Koh 《Forensic Science International Supplement Series》1997,90(3):626
Blood previously acidified with aqueous saturated ammonium chloride solution was extracted with ethyl acetate. The dried extract was subjected to acetonitrile–hexane partition. The acetonitrile portion was analysed for the presence of acidic and neutral drugs by HPLC–DAD (200 mm×2.1 mm I.D. microbore ODS-Hypersil column) and GC–FID (25 m narrow-bore×0.25 mm I.D. HP-5 column with 0.33 μm film thickness). The protocol was found to be suitable for both clinical toxicology (including emergency toxicology) and postmortem toxicology. At least 66 drugs of interest were unequivocally identified by RRTs (HPLC) and UV spectra (DAD) match while another 12 were unequivocally identified by double RRTs match (HPLC and GC). Quantitation was facilitated by incorporating calibration blood standards in each assay batch. The five drugs most commonly encountered in clinical blood specimens (1150 cases) were: paracetamol (47.4% of the cases); chlormezanone (6.6%), theophylline (1.74%), naproxen (1.65%) and mefenamic acid (1.56%). The following drugs were detected in toxicologically significant quantities in postmortem blood specimens (245 cases): phenobarbitone (1.22% of the cases), naproxen (0.82%), chlormezanone (0.82%), theophylline (0.82%), carbamazepine (0.41%) and paracetamol (0.41%). 相似文献
40.
Attributions of blame for the first and latest episodes of violence were assessed in a sample of 139 couples who were referred to a mandatory domestic violence treatment program in the military. Use of a methodology which allows for reports of nonmutually exclusive categories of attribution from both members of the dyad revealed more complex patterns of attributions than reflected in the existing literature. In addition, there were low rates of agreement within couples as to who was to blame for the violence. Although both men and women exhibited a high frequency of blaming their partner for both episodes of violence, men were significantly more likely to blame themselves for the latest than for the first episode. Attributions of blame were related to contextual variables in both men and women. Sex specific relationships emerged. These results were discussed with specific reference to predictions derived from attribution theory and their clinical implications. 相似文献