全文获取类型
收费全文 | 10269篇 |
免费 | 310篇 |
专业分类
各国政治 | 293篇 |
工人农民 | 487篇 |
世界政治 | 618篇 |
外交国际关系 | 314篇 |
法律 | 6599篇 |
中国共产党 | 34篇 |
中国政治 | 127篇 |
政治理论 | 1969篇 |
综合类 | 138篇 |
出版年
2021年 | 62篇 |
2020年 | 148篇 |
2019年 | 133篇 |
2018年 | 210篇 |
2017年 | 245篇 |
2016年 | 283篇 |
2015年 | 230篇 |
2014年 | 223篇 |
2013年 | 851篇 |
2012年 | 242篇 |
2011年 | 280篇 |
2010年 | 214篇 |
2009年 | 282篇 |
2008年 | 336篇 |
2007年 | 348篇 |
2006年 | 333篇 |
2005年 | 304篇 |
2004年 | 295篇 |
2003年 | 243篇 |
2002年 | 240篇 |
2001年 | 354篇 |
2000年 | 325篇 |
1999年 | 258篇 |
1998年 | 155篇 |
1997年 | 113篇 |
1996年 | 141篇 |
1995年 | 117篇 |
1994年 | 130篇 |
1993年 | 128篇 |
1992年 | 200篇 |
1991年 | 249篇 |
1990年 | 213篇 |
1989年 | 199篇 |
1988年 | 221篇 |
1987年 | 201篇 |
1986年 | 222篇 |
1985年 | 192篇 |
1984年 | 164篇 |
1983年 | 157篇 |
1982年 | 103篇 |
1981年 | 123篇 |
1980年 | 101篇 |
1979年 | 103篇 |
1978年 | 89篇 |
1977年 | 78篇 |
1976年 | 67篇 |
1975年 | 64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 15 毫秒
51.
Carrington L 《新国际主义者》1988,(184):32
Although Swaziland had been independent from colonialism for 20 years, a powerful monarch, King Mswati II, continues to control the country's political, religious, and social system. Swaziland has a population of 676,000, half of whom are under 15 years of age. The infant mortality rate is 105/1000 live births and 25% of children die before they reach their 5th birthday. Life expectancy is 54 years. Tribal chiefs, representing the king, hold and distribute about half of the national land. Most of the fertile land remains in the hands of white settler farmers. The concentration of income in foreign companies and urban centers has exacerbated poverty in rural areas. Depreciation of rand-linked local currency has boosted export earnings, but it has also raised the price of food and medical imports. Swaziland's main exports are sugar, wood pulp, chemicals, and fruit, most of which go to the UK and South Africa. The major food crops are maize, beans, groundnuts, and sorghum. About half of the working population is engaged in small-scale subsistence farming, but food yields are declining. The major producers are foreign companies attracted by Swaziland's low taxes and cheap labor supply. 相似文献
52.
"The authors attempt to present some empirical findings regarding a phenomenon which they chose to call the 'transition in migratory patterns'.... The general hypothesis states that: changes in migratory patterns are due to an interaction between those economic, political and social processes which affect the distribution of the population; and that this interaction is also highly influenced by macroeconomic politics--an arena where technology plays a dominant role." Data are for Guadalajara and the state of Jalisco in Mexico. (SUMMARY IN ENG) 相似文献
53.
54.
Two issues were examined in this study—the consistency of moral judgment across different types of dilemma and different social contexts, and the relationship between the structure (stage) of moral judgment and the content of moral decisions. Forty subjects were given two hypothetical dilemmas about business decisions and two standard Kohlberg dilemmas. Half the subjects directed their responses to a business audience, half to a philosophical audience. Responses to the moral dilemmas were scored in accordance with the Colby and Kohlberg (1987) scoring manual. Stage of moral reasoning was found to be significantly higher on the Kohlberg dilemmas than on the business dilemmas. A significant interaction between type of dilemma and audience was attributed to the tendency of subjects directing their responses to a business audience to interpret one of the business dilemmas in terms of the moral order of business, but for subjects directing their responses to a philosophy audience to treat it as a philosophical dilemma. The other business dilemma evoked uniformly low-level moral judgments. The amount of selfishness intrinsic in subjects' moral choices on the business dilemmas was significantly negatively correlated with moral maturity on the business dilemmas, but not with their moral maturity on Kohlberg's test. These results are interpreted as more consistent with models of moral development such as those advanced by C. G. Levine ([1979] Stage Acquisition and Stage Use: An Appraisal of Stage Displacement Explanations of Variation in Moral Reasoning, Human Development, Vol. 22, pp. 145–164), J. Rest ([1983] Morality, in: P. H. Mussen [ed.], J. H. Flavell and E. Markman [Vol. eds.], Handbook of Child Psychology [Vol. 3, 4th ed.], John Wiley & Sons, New York), and R. Harré ([1984]) Personal Being: A Theory for Individual Psychology, Harvard University Press, Cambridge, Massachusetts), which posit a relatively wide range of within-person stage use and emphasize the determining power of social situations, than with the more constructivistic model of moral development of Colby and Kohlberg (1987).This research was supported by Grant No. 410-87-1115 from the Social Sciences and Humanities Research Council of Canada.Received B.A. and M.A from Simon Fraser University. Research interests include moral development, and the influence of social interaction and language on the development of reasoning.Received Ph.D. from Harvard University. Research interests include moral development, altruism, and self-deception. 相似文献
55.
Black RF Collins S Boroughs DL Cumming-Bruce N Kahn S Blount J Tarr M Behn S Hall M 《U.S. news & world report》1992,113(4):48-52, 54-9
56.
E L Berrizbeitia 《Journal of forensic sciences》1989,34(5):1206-1213
Analysis of a sample of 1108 radii corresponding to 567 black and white North Americans in the Terry Collection at the Smithsonian Institution demonstrates that the diameter of the radial head is an accurate sex discriminator for human remains. A simple "radial-head method" of sex determination consists of measuring the maximum and minimum diameters of the head and comparing such measurements with the test cutoff points. The subject is female when the maximum radial head diameter (either left or right) is less than or equal to 21 mm, and male when the maximum diameter (either left or right) is greater than or equal to 24 mm. The same decisions apply to the minimum diameters of 20 mm or less and 23 mm or more, respectively. When the maximum diameter is 23 mm or the minimum is 22 mm, the subject is more likely male; when the maximum diameter is 22 mm or the minimum is 21 mm, the subject is more likely female. The sample frequency of any one of these latter diameters is never more than 16%. Cross-validation of the method with a sample of 50 pairs of radii of the Terry Collection, different from the original specimens, resulted in 92% sexing accuracy when using the left radius singly, 94% accuracy when using the right radius singly, and 96% accuracy when using both radii jointly. 相似文献
57.
Isoenzyme band patterns of animal blood erythrocyte acid phosphatase (EAP) and phosphoglucomutase-1 (PGM) were studied by isoelectric focusing on ultrathin polyacrylamide gels. For blood from all animals tested (dog, cat, cow, sheep, and goat), the overall band patterns for both isoenzymes were different from those of the most common human types of these enzymes, although some animal EAP and PGM bands appeared in the human band areas. When mixtures of human and animal red blood cells were studied, it was found that misinterpretation of human types was possible only if the overall band pattern of the mixtures was ignored. For the animal blood tested, the strong PGM bands appearing outside the human band areas could be used as "markers" for the possible presence of animal blood in the samples tested. 相似文献
58.
59.
60.
The presence of smeared or unsmeared ink on the skin resulting from the writing process has been observed in a number of suicide victims who have left suicide notes. The authors report a case of a palmar "cutaneous ink sign" and discuss its forensic science import. 相似文献