全文获取类型
收费全文 | 561篇 |
免费 | 17篇 |
专业分类
各国政治 | 19篇 |
工人农民 | 100篇 |
世界政治 | 29篇 |
外交国际关系 | 28篇 |
法律 | 254篇 |
中国政治 | 17篇 |
政治理论 | 129篇 |
综合类 | 2篇 |
出版年
2023年 | 5篇 |
2022年 | 3篇 |
2021年 | 3篇 |
2020年 | 6篇 |
2019年 | 4篇 |
2018年 | 12篇 |
2017年 | 15篇 |
2016年 | 20篇 |
2015年 | 11篇 |
2014年 | 19篇 |
2013年 | 70篇 |
2012年 | 17篇 |
2011年 | 15篇 |
2010年 | 18篇 |
2009年 | 17篇 |
2008年 | 15篇 |
2007年 | 21篇 |
2006年 | 28篇 |
2005年 | 13篇 |
2004年 | 22篇 |
2003年 | 12篇 |
2002年 | 28篇 |
2001年 | 8篇 |
2000年 | 9篇 |
1999年 | 12篇 |
1998年 | 10篇 |
1997年 | 7篇 |
1996年 | 10篇 |
1995年 | 12篇 |
1994年 | 7篇 |
1993年 | 8篇 |
1992年 | 9篇 |
1991年 | 6篇 |
1990年 | 10篇 |
1989年 | 12篇 |
1988年 | 8篇 |
1987年 | 6篇 |
1986年 | 7篇 |
1985年 | 5篇 |
1984年 | 8篇 |
1983年 | 8篇 |
1982年 | 7篇 |
1981年 | 6篇 |
1980年 | 5篇 |
1978年 | 3篇 |
1977年 | 3篇 |
1976年 | 3篇 |
1975年 | 3篇 |
1971年 | 3篇 |
1969年 | 2篇 |
排序方式: 共有578条查询结果,搜索用时 31 毫秒
201.
202.
203.
Male and female parolees released in 1970 with a two-year follow-up were compared on three basic factors: personal attributes, time served, and parole outcome. The two sexes were substantially different in five commitment offenses, prior prison sentences, age at admission to confinement from which paroled, and alcohol and drug involvement; they were relatively similar in the proportion of prior non-prison sentences. Women, on the average, serve less time in prison before parole than men. The proportion successfully continued on parole is the same for both sexes. 相似文献
204.
205.
206.
207.
McLean MR 《The Hastings law journal》2002,53(5):1049-1056
208.
209.
Margaret E. Blume-Kohout 《The Journal of Technology Transfer》2016,41(6):1327-1353
Foreign-born workers have made significant and substantial contributions to economic productivity and new firm creation in the United States. This paper identifies predictors of entrepreneurial participation among foreign-born workers, combining nationally representative survey datasets covering the U.S. resident, college-educated workforce with country-of-origin macro statistics from the Global Entrepreneurship Monitor. Immigrants who come to the U.S. after earning university degrees abroad are more likely to own businesses than other college-educated, U.S. resident workers. However, much of their higher rate of business ownership can be attributed to differences in demographic characteristics, such as years of postgraduate work experience and marital status. By contrast, science and engineering-based business ownership is most common among immigrants who came to the U.S. to pursue higher education. Furthermore, after controlling for differences in human capital, U.S.-trained adult immigrants have higher propensity to own businesses than other foreign-born workers and native U.S. citizens, overall. U.S.-trained immigrants’ higher probability of business ownership is not explained by differences in human capital or other demographic characteristics, but does seem partly attributable to differences across foreign-born workers’ countries-of-origin. Specifically, adult immigrants and foreign temporary residents from countries that offer entrepreneurs lower levels of cultural support are more likely to start and own U.S. businesses. 相似文献
210.