全文获取类型
收费全文 | 8916篇 |
免费 | 262篇 |
专业分类
各国政治 | 449篇 |
工人农民 | 422篇 |
世界政治 | 517篇 |
外交国际关系 | 267篇 |
法律 | 5630篇 |
中国共产党 | 3篇 |
中国政治 | 57篇 |
政治理论 | 1757篇 |
综合类 | 76篇 |
出版年
2020年 | 108篇 |
2019年 | 144篇 |
2018年 | 205篇 |
2017年 | 224篇 |
2016年 | 217篇 |
2015年 | 150篇 |
2014年 | 155篇 |
2013年 | 973篇 |
2012年 | 230篇 |
2011年 | 229篇 |
2010年 | 191篇 |
2009年 | 214篇 |
2008年 | 265篇 |
2007年 | 227篇 |
2006年 | 263篇 |
2005年 | 228篇 |
2004年 | 233篇 |
2003年 | 208篇 |
2002年 | 217篇 |
2001年 | 267篇 |
2000年 | 270篇 |
1999年 | 194篇 |
1998年 | 119篇 |
1997年 | 122篇 |
1996年 | 111篇 |
1995年 | 104篇 |
1994年 | 97篇 |
1993年 | 113篇 |
1992年 | 184篇 |
1991年 | 201篇 |
1990年 | 181篇 |
1989年 | 185篇 |
1988年 | 165篇 |
1987年 | 180篇 |
1986年 | 176篇 |
1985年 | 164篇 |
1984年 | 159篇 |
1983年 | 169篇 |
1982年 | 96篇 |
1981年 | 93篇 |
1980年 | 80篇 |
1979年 | 106篇 |
1978年 | 77篇 |
1977年 | 75篇 |
1976年 | 60篇 |
1975年 | 61篇 |
1974年 | 65篇 |
1973年 | 73篇 |
1972年 | 64篇 |
1968年 | 53篇 |
排序方式: 共有9178条查询结果,搜索用时 15 毫秒
991.
The act of evaluation requires an expenditure of resources. In Part I of this paper, we present a simple decision tree model borrowed from operations research to provide a conceptual framework for considering whether or not to commit such resources. In Part II, once the evaluation is carried out, we address the problem of evaluating the evaluation as a vehicle for producing useful information to decisionmakers. Evaluation inputs, processes, and outcomes are defined and discussed within the context of comprehensive evaluation of evaluations. 相似文献
992.
This study examines the association between parents' violence toward children and their involuntary participation in family work. Involuntary participation in family work is conceptualized as a form of role strain measured by the disparity between the amount of responsibility husbands and wives would prefer to assume in the home and the amount of family work they actually perform. The prediction guiding this research is that differences of this kind are more associated with mothers' violence than fathers'. Regression analysis with a national sample of parents supports this hypothesis. Nonetheless, the association between such role strain and violence is quite weak, suggesting that additional research is required in formulating and measuring this relationship. 相似文献
993.
994.
995.
H C Lee R E Gaensslen H W Carver E M Pagliaro J Carroll-Reho 《Journal of forensic sciences》1989,34(1):7-14
Results obtained from the ABH grouping of bone tissues by the absorption-elution procedure and by a recently described two-dimensional absorption-inhibition procedure are reported. Neither the elution nor the inhibition procedure alone yielded uniformly correct results. A combination procedure consisting of the use of both absorption-elution and two-dimensional absorption-inhibition is proposed for bone ABH grouping. When elution and inhibition were used in combination, specimens yielding concordant results with both techniques were correctly grouped. 相似文献
996.
997.
998.
999.
This article uses a case-study methodology to explore the impact of problematic relationships on the initiation of consensus-building efforts. The article notes that poor relations hinder the initiation process, while the expectation of benefits likely to result from the effort fosters the involvement of parties. The association between poor relations and expected benefits is explored with a focus on the appeal of collaboration. Strategies are then outlined to help facilitators to deal with problematic relationships by mitigating poor relations, highlighting incentives for participation, and building on the appeal of collaboration. Facilitators can use these strategies to increase their chances of success in initiating consensus-building efforts. 相似文献
1000.