全文获取类型
收费全文 | 6372篇 |
免费 | 244篇 |
专业分类
各国政治 | 255篇 |
工人农民 | 273篇 |
世界政治 | 473篇 |
外交国际关系 | 338篇 |
法律 | 3884篇 |
中国共产党 | 1篇 |
中国政治 | 40篇 |
政治理论 | 1302篇 |
综合类 | 50篇 |
出版年
2023年 | 54篇 |
2022年 | 28篇 |
2021年 | 42篇 |
2020年 | 105篇 |
2019年 | 140篇 |
2018年 | 174篇 |
2017年 | 175篇 |
2016年 | 184篇 |
2015年 | 124篇 |
2014年 | 168篇 |
2013年 | 683篇 |
2012年 | 184篇 |
2011年 | 200篇 |
2010年 | 148篇 |
2009年 | 190篇 |
2008年 | 179篇 |
2007年 | 171篇 |
2006年 | 176篇 |
2005年 | 135篇 |
2004年 | 153篇 |
2003年 | 151篇 |
2002年 | 131篇 |
2001年 | 241篇 |
2000年 | 240篇 |
1999年 | 171篇 |
1998年 | 85篇 |
1997年 | 82篇 |
1996年 | 69篇 |
1995年 | 78篇 |
1994年 | 67篇 |
1993年 | 71篇 |
1992年 | 133篇 |
1991年 | 115篇 |
1990年 | 145篇 |
1989年 | 132篇 |
1988年 | 149篇 |
1987年 | 135篇 |
1986年 | 115篇 |
1985年 | 111篇 |
1984年 | 84篇 |
1983年 | 76篇 |
1982年 | 58篇 |
1981年 | 53篇 |
1980年 | 45篇 |
1979年 | 67篇 |
1978年 | 39篇 |
1976年 | 34篇 |
1975年 | 28篇 |
1974年 | 40篇 |
1973年 | 32篇 |
排序方式: 共有6616条查询结果,搜索用时 15 毫秒
141.
142.
143.
144.
145.
146.
147.
A state law has placed an obligation on the criminal investigation laboratories to screen and quantitate all preparations, both pharmaceutical and illicit, that fall under the provisions of "Excepted Substances." Without complete screens on these preparations, there is room for erroneous indictments as well as possible acquittals on technicalities. 相似文献
148.
149.
Christopher Hubbard 《澳大利亚政治与历史杂志》2004,50(4):526-543
In early 1967 it appeared that the Eighteen Nation Disarmament Committee in Geneva would successfully negotiate a multilateral treaty to curb global proliferation of nuclear weapons. This triggered an urgent review by the Australian Government of its policies on the civil and military applications of nuclear technology. The need to build a coherent response to a US expectation that its Pacific ally would sign the prospective Nuclear Non-Proliferation Treaty imposed discipline upon a hitherto ad hoc approach to nuclear policy development. Those in the new Gorton Government and the nuclear science bureaucracy who advocated the embrace of nuclear technology—in both its civil and military applications—fought, and ultimately lost, a battle against proponents of the NPT. The resolution of the struggle for supremacy within elements of the policy community impelled the Government to demand and receive concessions from the USA. Originally silent on how the NPT might be interpreted and operationalised in order to maximise support, the US now shared its views with the members of the Western Alliance. US willingness to compromise with Australia in this way exceeded what its Pacific ally had cause to expect and illustrates that middle powers can wield influence on a global scale when circumstances permit. 相似文献
150.
Gabriel P. Kuperminc Sidney J. Blatt Golan Shahar Christopher Henrich Bonnie J. Leadbeater 《Journal of youth and adolescence》2004,33(1):13-30
Ethnic group differences in the contributions of self-definition (self-worth and efficacy) and interpersonal relatedness with parents and peers to changes in psychological and school adjustment were examined among 448 White, Black, and Latino girls and boys (11–14 years of age). Self-report questionnaires and school records were evaluated for socioeconomic and ethnic group differences in patterns of change over 1 year. Overall similarity in changes over time across ethnic groups was found for relatedness, self-definition, and psychological adjustment, although Black and Latino youth reported more overall adjustment difficulties, Black youth reported less positive relationships with parents, and lower SES youth reported less positive peer relationships than others. Ethnic group differences in changes to school adjustment, even after controlling SES, suggested a cultural variation in which often cited declines in school adjustment during middle school characterize White adolescents to a greater degree than Black or Latino adolescents. Ethnicity moderated associations of relatedness and self-definition with psychological and school adjustment such that Black and Latino youth appeared particularly vulnerable to experiences that threaten closeness and trust in relationships. Results pointed to potentially important situational and cultural differences in maladaptive and adaptive developmental processes across ethnicity. 相似文献