全文获取类型
收费全文 | 2911篇 |
免费 | 13篇 |
专业分类
各国政治 | 26篇 |
工人农民 | 35篇 |
世界政治 | 512篇 |
外交国际关系 | 87篇 |
法律 | 1988篇 |
中国共产党 | 22篇 |
中国政治 | 57篇 |
政治理论 | 180篇 |
综合类 | 17篇 |
出版年
2020年 | 3篇 |
2018年 | 3篇 |
2016年 | 3篇 |
2015年 | 3篇 |
2014年 | 14篇 |
2013年 | 6篇 |
2012年 | 234篇 |
2011年 | 228篇 |
2010年 | 44篇 |
2009年 | 30篇 |
2008年 | 198篇 |
2007年 | 211篇 |
2006年 | 181篇 |
2005年 | 193篇 |
2004年 | 187篇 |
2003年 | 194篇 |
2002年 | 207篇 |
2001年 | 145篇 |
2000年 | 172篇 |
1999年 | 61篇 |
1998年 | 46篇 |
1997年 | 31篇 |
1996年 | 20篇 |
1995年 | 37篇 |
1994年 | 47篇 |
1993年 | 48篇 |
1992年 | 32篇 |
1991年 | 31篇 |
1990年 | 22篇 |
1989年 | 15篇 |
1988年 | 40篇 |
1987年 | 16篇 |
1986年 | 20篇 |
1985年 | 24篇 |
1984年 | 13篇 |
1983年 | 19篇 |
1982年 | 12篇 |
1981年 | 23篇 |
1980年 | 18篇 |
1979年 | 13篇 |
1978年 | 13篇 |
1977年 | 13篇 |
1976年 | 6篇 |
1975年 | 6篇 |
1974年 | 5篇 |
1973年 | 6篇 |
1964年 | 4篇 |
1962年 | 3篇 |
1961年 | 6篇 |
1959年 | 3篇 |
排序方式: 共有2924条查询结果,搜索用时 15 毫秒
101.
102.
Avrett S 《Canadian HIV/AIDS policy & law review / Canadian HIV/AIDS Legal Network》2002,7(2-3):101-105
In light of the continuing spread of HIV infection and the devastating impact of the disease on lives, communities, and economies, particularly in the developing world, the investment in new treatments, vaccines, and microbicides has clearly been inadequate. Efforts must be intensified to develop effective HIV vaccines and to ensure that they are accessible to people in all parts of the world. This article is a summary of a paper by Sam Avrett presented at "Putting Third First: Vaccines, Access to Treatments and the Law," a satellite meeting held at Barcelona on 5 July 2002 and organized by the Canadian HIV/AIDS Legal Network, the AIDS Law Project, South Africa, and the Lawyers Collective HIV/AIDS Unit, India. In the article, Avrett calls for immediate action to increase commitment and funding for HIV vaccines, enhance public support and involvement, accelerate vaccine development, and plan for the eventual delivery of the vaccines. The article briefly outlines steps that governments need to take to implement each of these objectives. The article also provides a menu of potential actions for vaccine advocates to consider as they lobby governments. 相似文献
103.
Miller L France D Clemetson L Smalley S Carmichael M Scelfo J Miller L France D 《Newsweek》2002,139(9):42-9, 51-2
104.
105.
106.
107.
108.
The authors report on three autopsy cases in which the findings at the death scene gave rise to the suspect of non-natural, in two cases even violent causes of death. The medico-legal and criminalistic investigations led to surprising results: Death was due to acute intoxication with narcotics, supposed delirium tremens and a suicide attempt in the presence of bronchopneumonia. External force was ruled out in all three fatalities by cooperative work of police investigators and forensic medicine. 相似文献
109.
On a wintry day a 29-year-old woman was found dead beside her car showing head injuries and signs of hypothermia. Several empty packets of sedative and hypnotic drugs were lying inside the car. Toxicological analysis revealed the presence of flunitrazepam (heart blood of the left and right chamber 0.033 mg/L each), norflunitrazepam (left heart blood 0.029 mg/L, right heart blood 0.027 mg/L), 7-amino-flunitrazepam (left heart blood 0.090 mg/L, right heart blood 0.104 mg/L), diazepam (left heart blood 0.395 mg/L, right heart blood 0.386 mg/L), nordazepam (left heart blood 0.112 mg/L, right heart blood 0.115 mg/L) and temazepam (left heart blood 0.034 mg/L, right heart blood 0.033 mg/L). Neither alcohol nor other drugs were found. It was concluded that benzodiazepine intake led to a disturbance of consciousness. Whether the woman died in this situation due to the icy temperature as a result of hypothermia or whether she died or would have died solely due to benzodiazepine overdosage could not be clarified. 相似文献
110.
The article reports on the injury pattern seen in fatally wounded car passengers after rear-end collisions on motorways. The study material included 5 rear-end collisions, in which 9 car occupants (5 drivers and 4 front-seat passengers) were killed. The change in velocity (delta v) was above 60 km/h in all the reported cases. The injury pattern showed the following characteristics: extensive soft-tissue traumatization (subcutaneous haematomas, blood-filled pockets, "décollements") not discernible from outside on the back of the trunk, mostly in the lumbosacral region; dorsal serial rib fractures, often combined with fractures of the spine (including the sacrum and the coccyx) and/or the pelvis; ruptures of the aorta at the typical sites of predisposition; ruptures of the liver and spleen (particularly at the visceral surfaces). 相似文献