全文获取类型
收费全文 | 5760篇 |
免费 | 42篇 |
国内免费 | 3篇 |
专业分类
管理学 | 190篇 |
民族学 | 90篇 |
人才学 | 14篇 |
人口学 | 203篇 |
丛书文集 | 249篇 |
理论方法论 | 3197篇 |
综合类 | 830篇 |
社会学 | 882篇 |
统计学 | 150篇 |
出版年
2023年 | 5篇 |
2022年 | 9篇 |
2021年 | 10篇 |
2020年 | 20篇 |
2019年 | 24篇 |
2018年 | 16篇 |
2017年 | 22篇 |
2016年 | 16篇 |
2015年 | 26篇 |
2014年 | 83篇 |
2013年 | 31篇 |
2012年 | 278篇 |
2011年 | 185篇 |
2010年 | 107篇 |
2009年 | 81篇 |
2008年 | 136篇 |
2007年 | 182篇 |
2006年 | 191篇 |
2005年 | 165篇 |
2004年 | 136篇 |
2003年 | 107篇 |
2002年 | 135篇 |
2001年 | 149篇 |
2000年 | 117篇 |
1999年 | 55篇 |
1998年 | 48篇 |
1997年 | 35篇 |
1996年 | 32篇 |
1995年 | 40篇 |
1994年 | 31篇 |
1993年 | 175篇 |
1992年 | 204篇 |
1991年 | 272篇 |
1990年 | 103篇 |
1989年 | 206篇 |
1988年 | 194篇 |
1987年 | 210篇 |
1986年 | 228篇 |
1985年 | 262篇 |
1984年 | 262篇 |
1983年 | 252篇 |
1982年 | 304篇 |
1981年 | 341篇 |
1980年 | 209篇 |
1979年 | 42篇 |
1978年 | 15篇 |
1977年 | 5篇 |
1968年 | 5篇 |
1959年 | 8篇 |
1957年 | 6篇 |
排序方式: 共有5805条查询结果,搜索用时 15 毫秒
81.
82.
USSR. Gosudarstvennyi Komitet SSSR po Statistike 《Vestnik statistiki (Moscow, Russia : 1949)》1990,(10):35-40
Selected data concerning the USSR are presented. They concern vital statistics by republic for 1989 for rural and urban areas, birth order, life expectancy by sex, and population change and vital statistics for cities with a population over one million. 相似文献
83.
The authors outline demographic trends in Eastern Europe and Russia since 1970. Aspects considered include population size, birth rate and number of births, marriage and divorce, death rate, infant mortality, natural increase, sex ratio, and life expectancy. 相似文献
84.
Perez L 《The International migration review》1994,28(4):736-747
"Using data from the Children of Immigrants Survey, the antecedents of extended family arrangements among [U.S.] immigrant households with children are examined. The incidence and form of such arrangements, especially the presence of grandparents, are analyzed in relation to single parenthood, national origin, cultural assimilation, and socioeconomic variables. The findings serve to underscore the complexity of the correlates of extended family arrangements. While there is a relationship with single parenthood, more research is needed on the economic basis for the presence of relatives in the household. The analysis uncovered the need to also treat presence of grandparents as an independent variable, especially in the cultural assimilation of children of immigrants." 相似文献
85.
"The prospects for today's second generation will be considerably shaped by their current social, economic and demographic status. This article provides a statistical portrait of children of immigrants by analyzing data from the 1990 U.S. Census of Population and Housing. With the second generation defined as children under age 18 with at least one foreign-born parent, the study describes place of residence; household demographic, social and economic circumstances; household head's socioeconomic status; and characteristics of children themselves. Data on second-generation children are broken down by year of immigration of parents and child's nativity. Data for children with native-born parents are provided for comparison." 相似文献
86.
Oliue B.Asbury 《广州大学学报(社会科学版)》1995,(2)
"Teacher, what are we going to do next class?" This is an exciting question which I often hear from my students. As an English conversation teacher, I can make the learning of English either a dull and boring duty, or an exciting adventure. It is very important that I make my students hate missing my class, and keep them guessing just what will happen the next time! Let us consider some important ways that any teacher can help his other students want to do their 相似文献
87.
Ghana. Ministry of Health 《National population news bulletin : newsletter of the National Population Council》1996,1(3):5, 8
USAID has assisted the Ghanian Ministry of Health since 1991 to boost family planning services under the Ghana Family Planning and Health Project by providing supplies and information and increasing the effectiveness of HIV/AIDS prevention and control. The sustainability of the health system is endangered by favoring capital expenditures in lieu of continuous expenditures; the lack of linkage between project activities and regular activities; the centralization of resource flow; and too ambitious targeting. Capital outlays provided by USAID featured in the construction of four public health laboratories, but their operation also requires continuous financing amounting to about 10% of the whole investment. The latter is the responsibility of the government, although the details of these recurrent costs were not detailed at the outset and providing these funds for continuous operation may impair the operation of other systems. The resource constraints could be alleviated by an effective cost-recovery system or by the general improvement of the economy. The lack of linkage between project and regular activities is serious at regional and district levels. The centralization of resource flow means that most resources are kept for headquarter level activities, thus other activities suffer and the health sector becomes excessively reliant on donor support. Too ambitious planning stems from pressure on donors and hastily implemented projects result in duplication and waste. Closer consultation with the parties involved would improve the situation. The rivalry of technical and policy groups has contributed to past deficiencies. Double funding for the same activity has also occurred further increasing the dependence on donor funding. By concentration on people and systems sustainability would be enhanced, while cost recovery would help the operation of the laboratories. The Health Education Unit (HEU) recognized the importance of IEC and obtained financing for such activities. 相似文献
88.
89.
Theory and research have not kept pace with the growing interest in evaluating quality of mental health care, resulting in the use of unvalidated quality indicators. A framework for validating quality indicators is offered by which quality is viewed as the relationship between service structures, processes, and outcomes. Adoption of this framework will facilitate the measurement of quality using valid indicators and should be useful to agencies in their continuous quality improvement efforts. Valid information about the quality of mental health care services will help purchasers and consumers make more informed health care decisions. 相似文献
90.