全文获取类型
收费全文 | 12814篇 |
免费 | 55篇 |
专业分类
教育 | 9960篇 |
科学研究 | 1244篇 |
各国文化 | 22篇 |
体育 | 399篇 |
综合类 | 1篇 |
文化理论 | 389篇 |
信息传播 | 854篇 |
出版年
2023年 | 12篇 |
2022年 | 17篇 |
2021年 | 35篇 |
2020年 | 57篇 |
2019年 | 80篇 |
2018年 | 2256篇 |
2017年 | 2154篇 |
2016年 | 1632篇 |
2015年 | 151篇 |
2014年 | 185篇 |
2013年 | 375篇 |
2012年 | 264篇 |
2011年 | 733篇 |
2010年 | 873篇 |
2009年 | 465篇 |
2008年 | 670篇 |
2007年 | 1180篇 |
2006年 | 93篇 |
2005年 | 418篇 |
2004年 | 467篇 |
2003年 | 361篇 |
2002年 | 158篇 |
2001年 | 17篇 |
2000年 | 32篇 |
1999年 | 8篇 |
1998年 | 9篇 |
1997年 | 25篇 |
1996年 | 13篇 |
1995年 | 9篇 |
1994年 | 6篇 |
1993年 | 4篇 |
1992年 | 12篇 |
1991年 | 14篇 |
1990年 | 8篇 |
1989年 | 5篇 |
1988年 | 4篇 |
1987年 | 9篇 |
1986年 | 4篇 |
1985年 | 7篇 |
1984年 | 8篇 |
1983年 | 4篇 |
1982年 | 3篇 |
1981年 | 5篇 |
1980年 | 4篇 |
1979年 | 6篇 |
1978年 | 2篇 |
1977年 | 4篇 |
1976年 | 2篇 |
1974年 | 2篇 |
1875年 | 2篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
991.
992.
993.
The aims of the EVINCE research projectincluded examination of the impact of information on the clinical knowledge and practice ofnurses, midwives and health visitors. EVINCE (Establishing the Value of Information to NursingContinuing Education) was funded by the British Library R&D Department for 1 year, from 1November 1995 to 31 October 1996. The methods employed (based on those used in the Valueproject) included a critical incident type study to establish patterns of information need and useamong a random sample of nursing professionals. The nature of the impact of informationobtained on present and future competencies was assessed from a survey of the searches andrequests presented to library and information services. Nurses, midwives and health visitors didvalue the information (96% of respondents agreed that there was, or would be an effect onfuture practice through enhanced competence in one or more areas). The impact findings can beused to guide a more precise assessment of information needs. 相似文献
994.
"Pro-choice" suicide sites come under legal scrutiny(详细审查) After her grandmother died, 21-year-old Julie Veteto sank into a severe depressions. Still, her family was stunned the afternoon her husband, Roger, came home to find her body dangling(摇摆) from a dog leash in their bathroom doorway. The couple's computer was still connected to the Internet. On the screen: a Web site with detailed information on suicide by hanging. 相似文献
995.
Rebecca H. Goodwin Michael L. Cunningham Teresa Eagle 《Journal of educational administration and history》2005,37(1):1-17
This paper reviews the historical development of the secondary principalship in the US and examines how the current role of the principal is a result of historical forces. The authors consider a preferred future for the principalship and present recommendations for change. 相似文献
996.
997.
998.
999.
Chandralata Raghukumar 《Resonance》2007,12(6):24-42
The marine environment includes the nutrient-rich coastal waters, relatively nutrient-poor open oceanic waters, coral reef
atolls, metal-rich hydrothermal vent fluids with temperatures of 200–350°C, cold-seeps, estuaries, mangrove swamps, intertidal
beaches and rocky shores. Oceans are home to some of themost diverse and unique life forms. This article is an attempt to
introduce some of the fundamentals of biologicaloceanography andmarine biologyto describe life in the sea. 相似文献
1000.