全文获取类型
收费全文 | 10713篇 |
免费 | 354篇 |
专业分类
各国政治 | 320篇 |
工人农民 | 553篇 |
世界政治 | 632篇 |
外交国际关系 | 324篇 |
法律 | 6876篇 |
中国共产党 | 34篇 |
中国政治 | 131篇 |
政治理论 | 2061篇 |
综合类 | 136篇 |
出版年
2021年 | 73篇 |
2020年 | 163篇 |
2019年 | 157篇 |
2018年 | 244篇 |
2017年 | 266篇 |
2016年 | 314篇 |
2015年 | 239篇 |
2014年 | 246篇 |
2013年 | 922篇 |
2012年 | 264篇 |
2011年 | 305篇 |
2010年 | 231篇 |
2009年 | 297篇 |
2008年 | 358篇 |
2007年 | 372篇 |
2006年 | 347篇 |
2005年 | 321篇 |
2004年 | 311篇 |
2003年 | 257篇 |
2002年 | 247篇 |
2001年 | 355篇 |
2000年 | 326篇 |
1999年 | 261篇 |
1998年 | 157篇 |
1997年 | 118篇 |
1996年 | 141篇 |
1995年 | 120篇 |
1994年 | 136篇 |
1993年 | 129篇 |
1992年 | 202篇 |
1991年 | 250篇 |
1990年 | 216篇 |
1989年 | 201篇 |
1988年 | 226篇 |
1987年 | 204篇 |
1986年 | 222篇 |
1985年 | 196篇 |
1984年 | 165篇 |
1983年 | 157篇 |
1982年 | 104篇 |
1981年 | 122篇 |
1980年 | 101篇 |
1979年 | 103篇 |
1978年 | 90篇 |
1977年 | 78篇 |
1976年 | 64篇 |
1975年 | 65篇 |
1974年 | 65篇 |
1973年 | 77篇 |
1971年 | 50篇 |
排序方式: 共有10000条查询结果,搜索用时 687 毫秒
981.
982.
983.
目的探讨脑弥漫性轴索损伤(diffuse axonal injury,DAI)与脑挫裂伤和原发性脑干损伤的关系。方法分析112例DAI伤者的法医临床学资料和影像学特点,对原发性脑损伤的特征进行比较。结果112例DAI伤者中70.5%为交通事故致伤,多次暴力致伤比较多见(60.7%),伴脑挫裂伤者80例(71.4%)。CT或MRI发现出血灶者90例。结论DAI多伴有脑皮质挫裂伤和原发性脑损伤,CT或MRI有助于法医学死因分析和伤残程度鉴定。 相似文献
984.
This paper presents an econometric analysis of the impact of collaboration with universities on the innovative output of firms. We also illustrate the differences that emerge from robustness checks, based on different matching estimators and samples. Our findings strongly suggest that university collaboration has a positive influence on the innovative activity of large manufacturing firms. In contrast, there appears to be an insignificant association between university collaboration and the average service firm’s innovation output. 相似文献
985.
Gender in Job Negotiations: A Two-Level Game 总被引:1,自引:1,他引:0
986.
Jennifer L. Berdahl 《Social Justice Research》2008,21(3):255-262
987.
Trafficked women are used and consumed in different ways and by different users in Australia. They are used by the traffickers
and by the consumer of the destination country. They are used as prosecutorial tools by the national criminal justice agents.
They are used by the national politicians to pursue border control policy objectives and to be seen as abiding by international
protocols. In all these uses, the identity of the trafficked woman is formed and shaped to fit the users’ need. However, these
women’s otherness and abjection is constantly maintained and reinforced. They are used as a commodity. Meanwhile, the discussion
on the demand side, and the consequent responsibility of the destination country, is virtually omitted. This paper will raise
the question of how the socio-legal analysis and discourse would evolve if a literal interpretation of trafficking women as
a commodity was taken into account, exploring an international trade approach. The social construction of trafficked women
as a commodity has been identified and criticised by academic scholars, NGOs’ and UN’s rapporteurs. By pursuing this line
of approach, the destination country is forced to take more responsibility for how the woman is demanded within its territory.
As a consequence of this international trade approach, the State should deliver equality and non-discrimination. Rather than
being a cynical application of a trade framework to trafficked women, this approach aims to highlight the paradox of such
a situation in legal terms. It is highlighted that approaching trafficked women from this legal and jurisprudential way may
offer more possibilities to expand their claims against the State. Currently, in Australia, when a trafficked woman is located
by the State, she would attract limited and temporal rights, her being the ‘other’ as well as an abject entity remains, notwithstanding
the fact the she was imported because there is a demand within the territory. 相似文献
988.
P.M. Vallone M.C. Kline D.L. Duewer A.E. Decker J.W. Redman J.C. Travis M.V. Smith J.M. Butler 《Forensic Science International: Genetics Supplement Series》2008,1(1):80-82
National Institute of Standards and Technology SRM 2372 human DNA quantitation standard has been produced to support the need for a human-specific DNA quantitation standard in forensic casework and calibration of new quantitative polymerase chain reaction (qPCR) assays. The conventional DNA concentration has been assigned with one of the U.S. National Reference UV/Visible Spectrophotometers, assuming an absorbance of 1.0 at 260 nm equals 50 ng/μL of double stranded DNA. In addition, an interlaboratory study has been conducted, to verify that the SRM 2372 materials perform well in currently used DNA quantitation assays by the forensic DNA community. Each unit of SRM 2372 consists of three well-characterized DNA extracts. Component A is a single-source human male material derived from blood. Component B is a multiple-source human female material derived from blood. Component C was purchased as a purified unsheared genomic human DNA (Sigma-Aldrich Co., St. Louis, MO) obtained as a lyophilized human genomic extract and has both male and female donors. SRM 2372 is intended to enable the comparison of DNA concentration measurements across time and place. Manufacturers can use SRM 2372 to validate the values assigned to their own reference materials. Individual forensic laboratories can use SRM 2372 to validate DNA quantitation methods and to verify the assigned concentration of in-house or commercial DNA calibration standards. 相似文献
989.
990.
Despite the call to address domestic violence along with child maltreatment, little information exists to guide services for
victimized women involved with child welfare. Research shows that victimized women contend with multiple problems stemming
from violent victimization. Unfortunately less is known about combinations of needs and resources among victimized women,
especially for those involved with child welfare. Through an examination of needs and resources among families with child
maltreatment and domestic violence, we aimed to help address this knowledge gap. Needs and resources among 1,229 victimized
caregivers were examined using the National Survey of Child and Adolescent Well-being (NSCAW). Using latent class analysis,
four distinct multivariate profiles of needs and resources among victimized caregivers were identified. Significant differences
were found among the profile groups in the family violence they experienced in the 18 months following child welfare investigations.
Based on these findings, we discuss implications for tailored practices to enhance the safety of victimized caregivers involved
with child welfare.
An earlier version of this paper was presented at the 9th Annual Conference of the Society for Social Work and Research, Miami,
Florida in January 2005. 相似文献