全文获取类型
收费全文 | 7501篇 |
免费 | 250篇 |
专业分类
各国政治 | 399篇 |
工人农民 | 247篇 |
世界政治 | 646篇 |
外交国际关系 | 301篇 |
法律 | 4252篇 |
中国政治 | 46篇 |
政治理论 | 1786篇 |
综合类 | 74篇 |
出版年
2020年 | 102篇 |
2019年 | 126篇 |
2018年 | 189篇 |
2017年 | 188篇 |
2016年 | 173篇 |
2015年 | 127篇 |
2014年 | 135篇 |
2013年 | 848篇 |
2012年 | 174篇 |
2011年 | 183篇 |
2010年 | 165篇 |
2009年 | 168篇 |
2008年 | 192篇 |
2007年 | 188篇 |
2006年 | 188篇 |
2005年 | 178篇 |
2004年 | 166篇 |
2003年 | 181篇 |
2002年 | 170篇 |
2001年 | 234篇 |
2000年 | 189篇 |
1999年 | 171篇 |
1998年 | 106篇 |
1997年 | 102篇 |
1996年 | 73篇 |
1995年 | 86篇 |
1994年 | 80篇 |
1993年 | 92篇 |
1992年 | 124篇 |
1991年 | 155篇 |
1990年 | 134篇 |
1989年 | 150篇 |
1988年 | 134篇 |
1987年 | 151篇 |
1986年 | 143篇 |
1985年 | 150篇 |
1984年 | 141篇 |
1983年 | 142篇 |
1982年 | 102篇 |
1981年 | 95篇 |
1980年 | 93篇 |
1979年 | 96篇 |
1978年 | 80篇 |
1977年 | 61篇 |
1976年 | 69篇 |
1975年 | 67篇 |
1974年 | 75篇 |
1973年 | 71篇 |
1972年 | 57篇 |
1969年 | 60篇 |
排序方式: 共有7751条查询结果,搜索用时 15 毫秒
961.
962.
Robert W. Benson 《International Journal for the Semiotics of Law》1989,2(3):257-276
Loyola Law School, 1441 West Olympic Blvd, Los Angeles, CA 90015, U.S.A. My thanks to Jacqueline Grunfeld for valuable research assistance. 相似文献
963.
W Lehman 《International journal of law and psychiatry》1990,13(1-2):103-21; discussion 123-6
964.
965.
966.
Computers are no longer an idea of the future. They are, rather, a common and even expected tool of the public administrator. The authors assert that students of the discipline must have a practical knowledge of computer applications. While it is not necessary that advanced computer engineering be studied, students should nevertheless be made familiar with the uses of the computer in administration. Beyond learning how to operate a computer, the article states that students, especially adult learners, first have to be made not to fear this instrument of the age of information so that they will be comfortable when learning its applications. 相似文献
967.
968.
969.
970.
Case involving differentiation of deer and human bone fragments 总被引:4,自引:0,他引:4
In a recent Louisiana forensic anthropology case, it was necessary to attempt species identification of six small bone fragments. The primary concern was whether or not they matched the fractured humerus of a woman killed by two shotgun blasts and then disposed of in the Mississippi River. These tiny fragments were recovered by law enforcement officers inside a jeep pickup and at the gas station where the vehicle had been cleaned. The police suspect claimed that these fragments were from a deer that he had recently killed. The small size of the pieces precluded positive recognition of human versus nonhuman origin based upon gross morphology and cortical thickness. Microscopic examination was possible. This analysis involved comparison of the unknown specimens to reference deer and human thin sections including bone recovered from the woman during autopsy. Examination of the jeep and gas station fragments revealed no plexiform bone, secondary (not primary) osteons, and variability in size and shape of the osteons and Haversian canals. These and other variables identified the bone fragments as human. 相似文献