全文获取类型
收费全文 | 3501篇 |
免费 | 136篇 |
专业分类
各国政治 | 252篇 |
工人农民 | 103篇 |
世界政治 | 333篇 |
外交国际关系 | 237篇 |
法律 | 1410篇 |
中国共产党 | 40篇 |
中国政治 | 59篇 |
政治理论 | 1065篇 |
综合类 | 138篇 |
出版年
2023年 | 13篇 |
2022年 | 15篇 |
2021年 | 33篇 |
2020年 | 66篇 |
2019年 | 69篇 |
2018年 | 115篇 |
2017年 | 99篇 |
2016年 | 124篇 |
2015年 | 78篇 |
2014年 | 98篇 |
2013年 | 525篇 |
2012年 | 124篇 |
2011年 | 134篇 |
2010年 | 113篇 |
2009年 | 109篇 |
2008年 | 124篇 |
2007年 | 149篇 |
2006年 | 123篇 |
2005年 | 132篇 |
2004年 | 110篇 |
2003年 | 95篇 |
2002年 | 101篇 |
2001年 | 92篇 |
2000年 | 85篇 |
1999年 | 64篇 |
1998年 | 57篇 |
1997年 | 49篇 |
1996年 | 52篇 |
1995年 | 46篇 |
1994年 | 43篇 |
1993年 | 35篇 |
1992年 | 44篇 |
1991年 | 51篇 |
1990年 | 45篇 |
1989年 | 46篇 |
1988年 | 46篇 |
1987年 | 20篇 |
1986年 | 25篇 |
1985年 | 25篇 |
1984年 | 24篇 |
1983年 | 24篇 |
1982年 | 30篇 |
1981年 | 38篇 |
1980年 | 31篇 |
1979年 | 13篇 |
1978年 | 15篇 |
1977年 | 11篇 |
1975年 | 12篇 |
1974年 | 12篇 |
1967年 | 7篇 |
排序方式: 共有3637条查询结果,搜索用时 15 毫秒
981.
现阶段的私营企业劳动者初步具备了工人阶级的基本特征,是我国工人阶级的重要组成部分。由于私营企业的党组织和工会力量薄弱,党的政策没有得到全面落实,适应社会主义市场经济体制的法律法规尚未完全建立起来,造成私营企业劳动者在企业中处于弱势地位。因此,必须加强党组织在私营企业中的覆盖面,全面落实党在新的历史时期的政策,完善、健全《劳动法》及其相关法律,切实提高私营企业劳动者在企业的地位,维护他们的合法权益。 相似文献
982.
While the “achievement gap” generally and appropriately focuses upon gaps in test scores and other outcome measures, there may also be an “information gap” between higher and lower income parents that creates a disadvantage for lower income families in choosing good schools. In this article, we examine the extent to which there is such a gap, with a focus on data from a new survey of low‐ and moderate‐income parents who have made school choices. We find that, at least in relatively mature school choice environments like Milwaukee, Wisconsin, and Washington, DC, most low‐ and moderate‐income parents report being quite well informed and they engage in a variety of different activities to become informed. Thus, the information gap between lower and higher income parents may not be as large as scholars and policymakers had assumed. We do find that parents at the very lowest end of the income spectrum, especially those earning less than $10,000 per year, do feel less well‐informed and gather less information, but even here the differences are not enormous, relative to higher income parents. 相似文献
983.
Luchini D Di Paolo M Morabito G Gabbrielli M 《The American journal of forensic medicine and pathology》2003,24(2):198-201
Reported is the case of a man killed by a neighbor with a shotgun loaded with a unusual ammunition. The cartridge contained several shots chained together by metallic wires. Such ammunition has been used for hunting purposes but is now banned, so it can be handmade only. The joined pellets produce a wound with features that are different from those of a wound made by a regular load of pellets. Several interpretive problems are caused by the unknown number of pellets contained in the shell and the effects of the wire holding the shot together. 相似文献
984.
The utility of personality inventories for predicting successful police officer performance is an important issue in the law
enforcement employment selection process. The purpose of the present study is to evaluate the incremental validity of the
Minnesota Multiphasic Personality Inventory (MMPI-2), the Inwald Personality Inventory (IPI), and the Revised NEO Personality
Inventory (NEO PI-R) for predicting police academy performance of 79 recruits. Results indicate that each inventory contributes
significantly to prediction of academic performance in the academy, while only the NEO PI-R predicts physical performance.
The addition of the NEO PI-R to selection processes that already incorporate the MMPI-2 and IPI may be useful for enhancing
prediction of police officer performance. 相似文献
985.
Presciuttini S Ciampini F Alù M Cerri N Dobosz M Domenici R Peloso G Pelotti S Piccinini A Ponzano E Ricci U Tagliabracci A Baley-Wilson JE De Stefano F Pascali V 《Forensic science international》2003,131(2-3):85-89
Eleven Italian forensic laboratories participated in a population study based on the AB Profiler Plus loci with proficiency testing. The validated database, including 1340 individuals, is available on-line. Tests for Hardy-Weinberg equilibrium, gametic unbalance, and heterogeneity of gene frequency were generally not significant. Gene frequencies at each locus were consistent with those of two previously published Italian studies, but different from a third. Individuals of each subsample were paired, and the total number of alleles shared across the nine loci was determined in each pair. The analysis was replicated over the total sample. In addition, two samples of mother-child pairs (N=315) and full-sib pairs (N=91) were subjected to allele sharing analysis. The resulting distributions were sufficiently distinct from the sample of unrelated pairs as to be of practical usefulness. 相似文献
986.
987.
988.
989.
990.