全文获取类型
收费全文 | 1081篇 |
免费 | 24篇 |
专业分类
各国政治 | 48篇 |
工人农民 | 46篇 |
世界政治 | 60篇 |
外交国际关系 | 25篇 |
法律 | 792篇 |
中国政治 | 21篇 |
政治理论 | 106篇 |
综合类 | 7篇 |
出版年
2023年 | 4篇 |
2022年 | 5篇 |
2021年 | 9篇 |
2020年 | 18篇 |
2019年 | 25篇 |
2018年 | 24篇 |
2017年 | 23篇 |
2016年 | 32篇 |
2015年 | 18篇 |
2014年 | 17篇 |
2013年 | 75篇 |
2012年 | 30篇 |
2011年 | 29篇 |
2010年 | 23篇 |
2009年 | 19篇 |
2008年 | 28篇 |
2007年 | 16篇 |
2006年 | 15篇 |
2005年 | 28篇 |
2004年 | 42篇 |
2003年 | 37篇 |
2002年 | 25篇 |
2001年 | 101篇 |
2000年 | 67篇 |
1999年 | 73篇 |
1998年 | 35篇 |
1997年 | 4篇 |
1996年 | 3篇 |
1995年 | 8篇 |
1994年 | 4篇 |
1993年 | 7篇 |
1992年 | 21篇 |
1991年 | 18篇 |
1990年 | 39篇 |
1989年 | 26篇 |
1988年 | 29篇 |
1987年 | 23篇 |
1986年 | 14篇 |
1985年 | 13篇 |
1984年 | 8篇 |
1983年 | 8篇 |
1982年 | 11篇 |
1981年 | 8篇 |
1980年 | 4篇 |
1979年 | 11篇 |
1978年 | 7篇 |
1973年 | 2篇 |
1971年 | 4篇 |
1970年 | 3篇 |
1968年 | 2篇 |
排序方式: 共有1105条查询结果,搜索用时 0 毫秒
11.
The present study drew on four competing theoretical perspectives to examine the relationship between family structure and juvenile delinquency. Using data from the Add Health Study, the authors examined nonserious and serious delinquent behavior across youth from different types of households and also considered how the association between family structure and delinquency might be conditioned by family processes and economic factors. Results from negative binomial regression analyses indicated that, in general, type of household was not a significant predictor of nonserious or serious delinquency. Rather, maternal attachment emerged as the most important determinant of delinquent behavior among youth from all family types. The results are discussed within the context of Hirschi's original interpretation of social control theory and future directions for research are suggested. 相似文献
12.
M Y I?can 《Journal of forensic sciences》1988,33(6):1473-1476
Dr. Wilton Marion Krogman was one of the major founders of physical and forensic anthropology in the United States. His extraordinary career spanned nearly six decades, and he was universally admired and respected for his scholarship, teaching, research, wit, and humanity. While studies based on human skeletal remains have long been used to assist the medicolegal system, the late Dr. Krogman can be credited with uniting these areas into the discipline of forensic anthropology. His "Guide to the Identification of Human Skeletal Material" (1939) in the F.B.I. Law Enforcement Bulletin became the foundation of this discipline; his monumental book The Human Skeleton in Forensic Medicine (updated with the author in 1986) solidified its establishment. The purpose of this paper is to pay tribute to this great man and outline his influence on the development and advancement of forensic anthropology. 相似文献
13.
14.
Ninety Breathalyzer instruments (Model 1000) and twenty instruments (Models 900, 900A) were studied using a protocol described by the Department of Transportation's "Standard for Devices to Measure Breath Alcohol." Although the mean of each of three concentrations tested (0.05, 0.10, and 0.15 g/210 L) compared favorably in both series, the standard deviation was consistently higher for the Model 1000 instruments. The Model 1000 instruments also produced a significant number of test results which exceeded the normally expected scientific deviation. 相似文献
15.
The abuse of heroin (diacetylmorphine) in Singapore escalated sharply in 1975 and 1976, as indicated by the 35-fold increase in the number of heroin seizures and the 20-fold increase in the urine samples containing morphine since 1974. A rapid and simple GC method has been described to estimate diacetylmorphine (and caffeine). Monoacetylmorphine and acetylcodeine may be ascertained by an additional step involving acetylation. All gas chromatograms of a large number of samples analyzed consistently had the same pattern, indicating that they possibly had a common origin. This GC "fingerprint," together with the quantitative data, appears to be characteristic of the illicit Asian or Chinese type of heroin found in Singapore. The proportions of the four major ingredients in some twelve typical samples have been tabulated. Statistical data confirming the accuracy and reproducibility of the analytical method have also been presented. 相似文献
16.
17.
18.
19.
Becky P. Y. Loo 《当代中国》1998,7(17):61-87
This paper re‐examines the Lardy—Donnithorne debate in the provincial context of Guangdong. The study period is from 1949 to 1992. In the first place, the adequacy of provincial capital investment is evaluated against its population and national income shares. Secondly, it examines the capital construction investment from the administrative perspective with capital construction projects classified into central, ministry‐supported and local projects. Thirdly, it looks at the relationship from the financial perspective through a breakdown of capital construction investment by sources of investment funds, that is, state appropriation, domestic loans, foreign investment and self‐raised funds and others. Fourthly, the central‐local relationship is scrutinized through the fiscal relationship between the central and Guangdong governments. Lastly, extra‐budgetary funds data, whenever available, are also analyzed. The paper finds that the centripetal and centrifugal forces in Guangdong have always been in dynamic and precarious balance both before and after the Open Policy. 相似文献
20.
Samuel C. Y. Ku 《当代中国》1998,7(19):421-442
During the periods of July‐August 1995 and mid‐March 1996, China initiated a series of missile tests and military exercises in the Taiwan Strait, and the mainland for many was considered responsible for the rising tensions across the Taiwan Strait. But, Southeast Asian countries held Taiwan responsible for stimulating the mainland's military actions because of the island's claim for independence. Why? There are three different theoretical arguments on this issue, i.e. those of political primacy, economic determinism, and the separation of politics and economics. This paper contends that the principle of separation of politics and economics is the policy that Southeast Asian countries pursue in developing their relations with the PRC and the ROC, i.e. maintaining official and full‐scale relations with the PRC, but keeping unofficial and economic links with Taiwan. Therefore, for Southeast Asian countries, the PRC's military exercises in the Taiwan Strait were a political and not an economic problem, and one between the mainland and Taiwan. This is the key factor in explaining attitudes in Southeast Asian nations toward the Taiwan Strait crisis. 相似文献