全文获取类型
收费全文 | 11323篇 |
免费 | 390篇 |
专业分类
各国政治 | 763篇 |
工人农民 | 422篇 |
世界政治 | 914篇 |
外交国际关系 | 524篇 |
法律 | 6164篇 |
中国共产党 | 2篇 |
中国政治 | 157篇 |
政治理论 | 2659篇 |
综合类 | 108篇 |
出版年
2020年 | 150篇 |
2019年 | 174篇 |
2018年 | 252篇 |
2017年 | 275篇 |
2016年 | 295篇 |
2015年 | 242篇 |
2014年 | 245篇 |
2013年 | 1459篇 |
2012年 | 274篇 |
2011年 | 368篇 |
2010年 | 275篇 |
2009年 | 295篇 |
2008年 | 309篇 |
2007年 | 284篇 |
2006年 | 292篇 |
2005年 | 265篇 |
2004年 | 298篇 |
2003年 | 306篇 |
2002年 | 230篇 |
2001年 | 403篇 |
2000年 | 368篇 |
1999年 | 326篇 |
1998年 | 197篇 |
1997年 | 140篇 |
1996年 | 143篇 |
1995年 | 151篇 |
1994年 | 146篇 |
1993年 | 139篇 |
1992年 | 189篇 |
1991年 | 191篇 |
1990年 | 184篇 |
1989年 | 176篇 |
1988年 | 195篇 |
1987年 | 193篇 |
1986年 | 197篇 |
1985年 | 179篇 |
1984年 | 174篇 |
1983年 | 183篇 |
1982年 | 125篇 |
1981年 | 87篇 |
1980年 | 101篇 |
1979年 | 108篇 |
1978年 | 103篇 |
1977年 | 87篇 |
1976年 | 85篇 |
1975年 | 72篇 |
1974年 | 73篇 |
1973年 | 64篇 |
1972年 | 63篇 |
1969年 | 67篇 |
排序方式: 共有10000条查询结果,搜索用时 109 毫秒
51.
The absence of a thoroughly developed, working class critique of criminological theory has resulted in bias in the creation
of knowledge regarding crime and deviance. Much as feminist writings illuminated the unique problems related to gender, and
works by those discussing racial and ethnic minorities highlighted the special concerns related to race and ethnicity, a working
class perspective can expose the particular issues having to do with class. A brief discussion will be presented dealing with
the portrayal of working class people in the media, and the complicity of academia in allowing working class stereotypes to
persist. A sketch of a working class perspective will then be developed, and it will be used to critique fourteen of the major
criminological theories today in terms of their relative sensitivities and considerations of the class factor in crime and
justice issues. The final section places each of the fourteen theories on a continuum from those that do not consider the
working class experience at all to those that give the working class experience full consideration.
This revised version was published online in July 2006 with corrections to the Cover Date. 相似文献
52.
William V. Pelfrey Jr. 《Journal of criminal justice》2007,35(3):313
Although law enforcement agencies across the nation have assumed part of the responsibility in the fight against terrorism, significant confusion exists as to the role of local law enforcement. While some agencies have taken steps towards terrorism prevention, little data has been collected on which agencies have taken the greatest steps, how those agencies have changed, and how other agencies should direct their activity. This case study of law enforcement census data from a single state considered variations in terrorism preparedness and predictors of preparedness. Agency size, presence of funding, and other variables significantly predict levels of terrorism preparedness. Important policy implications such as the distribution of funding and which agencies should be working towards terrorism preparedness are discussed. 相似文献
53.
54.
On the one hand the following case demonstrates the problems of finding a dead body in the bathroom and on the other hand the importance of postmortem x-ray examinations. The corpse of an 65-year-old woman was discovered in her bath tub. At the body's feet there was a hair dryer. Investigations concerning murder were negative, circumstances appeared to be unsuspicious. That was why a postmortem examination was not performed. -4 years later murder had to be considered. After manual strangling the deceased and the hair dryer were layed into the bath tub. The corpse was exhumed and taken to a forensic autopsy. It was found that the hyoid bone and the superior horn of the thyroid cartilage were both fractured on the right. Damages caused by the preparation itself were excluded by using serial roentgenographs. These observations in combination with histological findings and the results of further investigations convincingly supported the suspicion of strangling by hand. 相似文献
55.
A gas chromatographic (GC) fingerprint method, based on the presence or absence of six congeners, was developed for illicit cocaine samples. The fingerprint utilizes the relative abundances of these congeners towards each other, disregarding cocaine as the main constituent, and can be expressed numerically or graphically in the form of pictograms for rapid visual comparison. The method can be applied directly to a solution of the sample in chloroform, without previous workup procedures. More than 70 unrelated samples were analyzed and a great variation was observed in the parameter composition. On the other hand, a remarkable similarity could be seen between related samples. The GC fingerprint method may be considered an important contribution for sample comparison, as is exemplified by a subdivision of the analyzed samples in different categories, based on the number and types of congeners found. 相似文献
56.
C Moore S Browne I Tebbett A Negrusz W Meyer L Jain 《Forensic science international》1992,56(2):177-181
A new solid-phase extraction procedure for the determination of cocaine and benzoylecgonine in amniotic fluid, using high flow co-polymeric sorbents is reported. The recoveries of cocaine and benzoylecgonine within the range 0.1-1 mg/l were 95.7% and 50.3%, respectively. The use of high-flow sorbents allowed the easy extraction of amniotic fluid regardless of sample viscosity or physical nature. The use of these solid-phase columns provided many advantages over the more commonly used solvent extraction, including an increase in extraction speed and efficiency, reduced operator time, reduced solvent use and disposal volumes and exceptional extract quality. Further, the determination of amniotic fluid obtained from pregnant cocaine users may provide important information about handling of cocaine by the fetus at various gestational ages. The procedure was successfully applied to amniotic fluid from suspected cocaine abusers. 相似文献
57.
58.
B. C. Koh 《East Asia》1994,13(2):61-74
North Korea’s foreign policy track record in the post-cold war era is mixed. Most notable setbacks are the diplomatic normalization between the Soviet Union (now Russia) and South Korea; the reversal of its UN policy that paved the way for the simultaneous admission of the two Korean states to the world organization; and the diplomatic normalization between China and South Korea. On the credit side of Pyongyang’s diplomatic ledger are changes in its relations with Tokyo and Washington. While tangible results have yet to materialize, particularly in North Korea-Japan relations, the groundwork has nonetheless been laid for significant improvement. North Korea’s suspected nuclear weapons development program has played a major role in the unfolding of its relations with the United States. Conceptually, North Korean foreign policy can be explained in terms of its quest for three interrelated goals: security, legitimacy, and development. In the post-cold war era security appears to have emerged as the most important of the three goals. North Korea is at a crossroads. The choices it makes in foreign policy will determine not only the direction of its domestic policy but, ultimately, the survival of the regime itself. The external players in Seoul, Washington, Tokyo, Beijing, Moscow, and Vienna (the IAEA) have varying degrees of leverage over Pyongyang’s policy as well. 相似文献
59.
C J Kim B H Kwak S D Kim S P Kim 《The American journal of forensic medicine and pathology》1992,13(3):211-213
A 22-year-old Korean soldier, who had received blows to the neck and epigastrium from an officer 10 h earlier, suddenly died after massive hematemesis. He had been in relatively good health except for episodes of blood-tinged vomiting approximately 5 and 7 months prior to this event. Postmortem examination revealed angiodysplasia involving the gastroesophageal junction, and the stomach was distended with blood. No abnormal findings were present around the whole viscera, and the duodenum was free of blood. The pathologic significance of upper gastrointestinal angiodysplasia as a potential source of bleeding and a chronologic correlation between the trauma and bleeding are discussed. 相似文献
60.