维普中文期刊产品整合服务
19471篇 您的检索式:作者名="jacob"
    题名 作者 年代 出处 被引量
1Hydration lubrication显示文摘The hydration lubrication paradigm,whereby hydration layers are both strongly held by the charges they surround,and so can support large pressures without being squeezed out,and at the same time remain very rapidly relaxing and so have a fluid response to shear,provides a framework for understanding,controlling,and designing very efficient boundary lubrication systems in aqueous and biological media.This review discusses the properties of confined water,which-unlike organic solvents-retains its fluidity down to molecularly thin films.It then describes lubrication by hydrated ions trapped between charged surfaces,and by other hydrated boundary species including charged and zwitterionic polymer brushes,surfactant monolayers,liposomes,and biological macromolecules implicated in synovial joint lubrication.Finally,challenges and prospects for future development of this new boundary lubrication approach are considered.Jacob KLEIN 2013Friction2013,1,1:38
2Small bowel capsule endoscopy in 2007:Indications,risks and limitations显示文摘囊内视镜检查法有 revoluzionized 由提供一个可靠方法评估的小肠的学习,内视镜的联盟者,全部小肠。在最后六年里,几份报纸被出版了处于不同临床的条件探索这考试的可能的角色。在现在的时间囊,内视镜检查法通常被推荐为第三考试,在否定双向内视镜检查法以后,在有阴暗胃肠的流血的病人。证据的成长身体也处于象 Crohn 的疾病,乳糜泻,小肠息肉病症候群或小肠肿瘤那样的另外的临床的条件为这考试建议一个重要角色。这考试的主要复杂并发症是在以前未知的小肠苛评的地点的设备的保留。然而,也由于这个工具的技术限制主要有一些另外的开的问题(它没从遥控被驾驶,是不能的拿活体检视到 insufflate 空气,正确地缩放并且定位损害到 suck 液体或碎片并且到有时) 。最近发达的双汽球肠脓毒病,尽管侵略、耗时,由于它的能力指向了活体检视探索小肠的大部分并且拿,能克服囊内视镜检查法的一些限制。在现在预定,在临床的条件的多数(即阴暗官方补给的流血),赢的策略似乎是联合这二种技术探索小肠在一无痛苦,安全、完全的方法(与囊内视镜检查法)并且识别了定义并且对待损害(与两倍汽球肠寄生物)。Emanuele Rondonotti Federica Villa Chris JJ Mulder Maarten AJM Jacobs Roberto de Franchis 2007World Journal of Gastroenterology2007,13,46:30
3Vitamin D supplementation improves sustained virologic response in chronic hepatitis C (genotype 1)-nave patients显示文摘AIM: To determine whether adding vitamin D, a potent immunomodulator, improves the hepatitis C virus (HCV) response to antiviral therapy. METHODS: Seventy-two consecutive patients with chronic HCV genotype 1 were randomized into two groups: the treatment group (n = 36, 50% male, mean age 47 ± 11 years) received Peg-α-2b interferon (1.5 μg/kg per week) plus ribavirin (1000-1200 mg/d) together with vitamin D3 (2000 IU/d, target serum level > 32 ng/mL), and the control group (n = 36, 60% male, mean age 49 ± 7 years) received identical therapy without vitamin D. HCV-RNA was assessed by realtime polymerase chain reaction (sensitivity, 10 IU/mL). The sustained virologic response (SVR) was defined as undetectable HCV-RNA at 24 wk post-treatment. RESULTS: Clinical characteristics were similar in both groups. The treatment group had a higher mean bodymass index (27 ± 4 kg/m2 vs 24 ± 3 kg/m2, P < 0.01), viral load (50% vs 42%, P < 0.01), and fibrosis score (> F2: 42% vs 19%, P < 0.001) than the controls. At week 4, 16 (44%) treated patients and 6 (17%) controls were HCV-RNA negative (P < 0.001). At week 12, 34 (94%) treated patients and 17 (48%) controls were HCV-RNA negative (P < 0.001). At 24 wk post-treatment (SVR), 31 (86%) treated patients and 15 (42%) controls were HCV-RNA negative (P < 0.001). Viral load, advanced fibrosis and vitamin D supplementation were strongly and independently associated with SVR (multivariate analysis). Adverse events were mild and typical of Peg-α-2b/ribavirin. CONCLUSION: Adding vitamin D to conventional Peg-α-2b/ribavirin therapy for treatment-na■ve patients with chronic HCV genotype 1 infection significantly improves the viral response.Saif Abu-Mouch Zvi Fireman Jacob Jarchovsky Abdel-Rauf Zeina Nimer Assy Liver Unit 2011World Journal of Gastroenterology2011,17,47:29
4Power hardware in the loop validation of fault ride through of VSC HVDC connected offshore wind power plants显示文摘This paper presents the power hardware in the loop(PHIL)validation of a feed forward DC voltage control scheme for the fault ride through(FRT)of voltage source converter(VSC)high voltage DC(HVDC)connected offshore wind power plants(WPPs).In the proposed FRT scheme,the WPP collector network AC voltage is actively controlled by considering both the DC voltage error and the AC current from the WPP AC collector system which ensures fast and robust FRT of the VSC HVDC connected offshore WPPs.The PHIL tests were carried out in order to verify the efficacy of the proposed feed forward DC voltage control scheme for enhancing the FRT capability of the VSC HVDC connected WPPs.The PHIL test results have demonstrated the proper control coordination between the offshore WPP and the WPP side VSC and the efficient FRT of the VSC HVDC connected WPPs.Ranjan SHARMA Qiuwei WU Seung Tae CHA Kim H.JENSEN Tonny W.RASMUSSEN JacobØSTEGAARD 2014Journal of Modern Power Systems and Clean Energy2014,2,1:26
5短碳纤维增强注塑聚醚醚酮复合材料微观结构与力学性能研究显示文摘实验结果表明 :短碳纤维增强注塑聚醚醚酮 (CF/ PEEK)注塑板材中存在“皮 -芯”次层微结构 ,用金相显微镜可以表征 CF取向度不同的皮层和芯层的厚度 ,整板材料的力学性能可以根据皮层及芯层的厚度及其强度按“混合规则”计算。 DSC法及热烘箱法研究表明 ,碳纤维取向结构和钟明强 益小苏 Jacobs O 2002复合材料学报2002,19,1:20
6持续性姿势-感知性头晕(PPPD)诊断标准:Bárány学会前庭疾病分类委员会共识显示文摘本文提出被纳入前庭疾病国际分类(International Classification of Vestibular Disorders,ICVD)的持续性姿势-感知性头晕(PPPD)的诊断标准。PPPD虽然是一个新的医学术语,但该病的存在由来已久。前庭疾病分类委员会深入汇总、分析了近30年来恐惧性姿势性眩晕(Phobic Postural Vertigo,PPV)、空间运动不适(Space℃Motion Discomfort,SMD)、视觉性眩晕(Visual Vertigo,VV)和慢性主观性头晕(Chronic Subjective Dizziness,CSD)相关的研究,在此基础上提出了PPPD的诊断标准。临床上,头晕、不稳、非旋转性眩晕为PPPD的3个核心症状。PPPD患者常表现为这3个核心症状中的一个或多个,症状持续时间超过3个月,并且在直立姿势、主动/被动运动、暴露于移动视觉刺激或复杂视觉环境中时症状出现加重。PPPD可能与影响平衡系统或引起眩晕、不稳及头晕的疾病所触发有关,包括周围或中枢前庭病变、其他内科疾病或心理疾病。临床上,PPPD既可单独存在,也可与其他临床疾病共病。PPPD可能的亚型分类尚需进一步识别和验证。迄今为止,PPPD确切的病理生理机制尚不明确。新近研究表明,PPPD可能与躯体姿势控制、多感觉信息处理、威胁评估系统与空间定向系统皮质整合的功能异常相关。因此,PPPD被归类为慢性功能性前庭疾病,并不是结构性前庭疾病或精神心理性前庭疾病。李康之(译) 刘博(译) 顾平(审校) 杨旭(审校) Jeffrey PStaab Annegret Eckhardt-Henn Arata Horii Rolf Jacob Michael Strupp Thomas Brandt Adolfo Bronstein 2020神经损伤与功能重建2020,15,2:20
7miR-20b, miR-98, miR-125b-1*, and let-7e* as new potential diagnostic biomarkers in ulcerative colitis显示文摘AIM:To use microarray-based miRNA profiling of colonic mucosal biopsies from patients with ulcerative colitis (UC), Crohn's disease (CD), and controls in order to identify new potential miRNA biomarkers in inflammatory bowel disease. METHODS:Colonic mucosal pinch biopsies from the descending part were obtained endoscopically from patients with active UC or CD, quiescent UC or CD, as well as healthy controls. Total RNA was isolated and miRNA expression assessed using the miRNA microarray Geniom Biochip miRNA Homo sapiens (Febit GmbH, Heidelberg, Germany). Data analysis was carried out by principal component analysis and projection to latent structure-discriminant analysis using the SIMCA-P+12 software package (Umetrics, Umea, Sweden). The microarray data were subsequently validated by quantitative real-time polymerase chain reaction (qPCR) performed on colonic tissue samples from active UC patients (n = 20), patients with quiescent UC (n = 19), and healthy controls (n = 20). The qPCR results were analyzed with Mann-WhitneyU test.In silico prediction analysis were performed to identify potential miRNA target genes and the predicted miRNA targets were then compared with all UC associated susceptibility genes reported in the literature. RESULTS:The colonic mucosal miRNA transcriptome differs significantly between UC and controls, UC and CD, as well as between UC patients with mucosal inflammation and those without. However, no clear differences in the transcriptome of patients with CD and controls were found. The miRNAs with the strongest differential power were identified (miR-20b, miR-99a, miR-203, miR-26b, and miR-98) and found to be upregulated more than a 10-fold in active UC as compared to quiescent UC, CD, and controls. Two miRNAs, miR-125b-1* and let-7e*, were up-regulated more than 5-fold in quiescent UC compared to active UC, CD, and controls. Four of the seven miRNAs (miR-20b, miR-98, miR-125b-1*, and let-7e*) were validated by qPCR and found to be specifically upregulated in patients with UC. Usingin silico analysis we found several predicted pro-inflammatory target genes involved in various pathways, such as mitogen-activated protein kinase and cytokine signaling, which are both key signaling pathways in UC.CONCLUSION:The present study provides the first evidence that miR-20b, miR-98, miR-125b-1*, and let7e* are deregulated in patients with UC. The level of these miRNAs may serve as new potential biomarkers for this chronic disease.Mehmet Coskun Jacob Tveiten Bjerrum Jakob Benedict Seidelin Jesper Thorvald Troelsen JΦrgen Olsen Ole Haagen Nielsen 2013World Journal of Gastroenterology2013,19,27:19
8Current concepts on the role of nitric oxide in portal hypertension显示文摘Portal hypertension(PHT) is defined as a pathological increase in portal venous pressure and frequently accompanies cirrhosis.Portal pressure can be increased by a rise in portal blood flow,an increase in vascular resistance,or the combination.In cirrhosis,the primary factor leading to PHT is an increase in intra-hepatic resistance to blood flow.Although much of this increase is a mechanical consequence of architectural disturbances,there is a dynamic and reversible component that represents up to a third of the increased vascular resistance in cirrhosis.Many vasoactive substances contribute to the development of PHT.Among these,nitric oxide(NO) is the key mediator that paradoxically regulates the sinusoidal(intra-hepatic) and systemic/splanchnic circulations.NO deficiency in the liver leads to increased intra-hepatic resistance while increased NO in the circulation contributes to the hyperdynamic systemic/splanchnic circulation.NO mediated-angiogenesis also plays a role in splanchnic vasodilation and collateral circulation formation.NO donors reduce PHT in animals models but the key clinical challenge is the development of an NO donor or drug delivery system that selectively targets the liver.Liang Shuo Hu Jacob George Jian Hua Wang 2013World Journal of Gastroenterology2013,19,11:18
9利用直接激发Rayleigh表面波的方法测量材料的声学非线性系数显示文摘提出了利用直接激发Rayleigh表面波的方法测量材料的声学非线性系数。采用专门的信号源,将压电传感器安装在试件边缘直接激发Rayleigh表面波,利用激光干涉仪测量系统采集试件表面的Rayleigh波信号。对采集到的Rayleigh波信号进行FFT变换,得到Rayleigh波信号中所包含的基频和高频成分,并据此进一步确定材料的声学非线性系数。对铝合金材料AA2024和AA6061的试验测量与分析结果表明,这种利用将压电传感器直接安装在试件边缘激发Rayleigh表面波的方法能够有效、准确地测量材料的声学非线性系数,可以为材料和结构早期力学性能退化的无损检测和评价提供一种有效的途径。税国双 汪越胜 Jianmin Qu Jin-Yeon Kim Laurence J. Jacobs 2008声学学报2008,33,4:18
10MicroRNAs in inflammatory bowel disease-pathogenesis,diagnostics and therapeutics显示文摘The pathogenesis of inflammatory bowel disease (IBD) is complex and largely unknown. Until recently, research has focused on the study of protein regulators in inflammation to reveal the cellular and molecular networks in the pathogenesis of IBD. However, in the last few years, new and promising insights have been generated from studies describing an association between an altered expression of a specific class of non-coding RNAs, called microRNAs (miRs or miRNAs) and IBD. The short (approximately 22 nucleotides), endogenous, single-stranded RNAs are evolutionary conserved inanimals and plants, and regulate specific target mRNAs at the post-transcriptional level. MiRNAs are involved in several biological processes, including development, cell differentiation, proliferation and apoptosis. Furthermore, it is estimated that miRNAs may be responsible for regulating the expression of nearly one-third of the genes in the human genome. Thus, miRNA deregulation often results in an impaired cellular function, and a disturbance of downstream gene regulation and signaling cascades, suggesting their implication in disease etiology. Despite the identification of more than 1900 mature human miRNAs, very little is known about their biological functions and functional targets. Recent studies have identified dysregulated miRNAs in tissue samples of IBD patients and have demonstrated similar differences in circulating miRNAs in the serum of IBD patients. Thus, there is great promise that miRNAs will aid in the early diagnosis of IBD, and in the development of personalized therapies. Here, we provide a short review of the current state-of-the-art of miRNAs in IBD pathogenesis, diagnostics and therapeutics.Mehmet Coskun Jacob Tveiten Bjerrum Jakob Benedict Seidelin Ole Haagen Nielsen 2012World Journal of Gastroenterology2012,18,34:18
11电磁力与射流流场中压力脉动作用下伺服阀力矩马达谐响应分析显示文摘为揭示伺服阀自激噪声的产生机理,该文对伺服阀力矩马达的振动特性进行研究。通过分析喷嘴挡板式电液伺服阀的工作原理,给出了衔铁组件的受力数学模型。建立了单自由度系统的谐响应分析数学模型,分析了谐振频率与系统固有频率的关系。采用ANSYS软件对电磁场和伺服阀内部流场作用下力矩马达的谐响应特性进行了分析,得出了力矩马达关键点处不同方向上的谐响应曲线,分析了其在0--4500Hz内的谐振规律。仿真结果表明,电磁场和流场的作用会激发力矩马达的高频振动,从而可能诱发高频自激噪声。彭敬辉 李松晶 JACOB M Mchenya 2013工程力学2013,30,2:17
12Role of ethanol in the regulation of hepatic stellate cell function显示文摘Evidence has accumulated to suggest an important role of ethanol and/or its metabolites in the pathogenesis of alcohol-related liver disease. In this review, the fibrogenic effects of ethanol and its metabolites on hepatic stellate cells (HSCs) are discussed. In brief, ethanol interferes with retinoid metabolism and its signaling, induces the release of fibrogenic cytokines such as transforming growth factor β-1 (TGFβ-1) from HSCs, up-regulates the gene expression of collagen I and enhances type I collagen protein production by HSCs. Ethanol further perpetuates an activated HSC phenotype through extracellular matrix remodeling. The underlying pathophysiologic mechanisms by which ethanol exerts these pro-fibrogenic effects on HSCs are reviewed.Jian-Hua Wang Robert G Batey Jacob George 2006World Journal of Gastroenterology2006,12,43:16
13Molecular mechanisms of insulin resistance in chronic hepatitis C显示文摘It is now widely recognized that chronic hepatitis C (CHC)is associated with insulin resistance(IR)and type 2 diabetes,so can be considered a metabolic disease.IR is most strongly associated with hepatitis C virus(HCV)genotype 1,in contrast to hepatic steatosis, which is associated with genotype 3 infection.Apart from the well-described complications of diabetes,IR in CHC predicts faster progression to fibrosis and cirrhosis that may culminate in liver failure and hepatocellular carcinoma.More recently,it has been recognized that IR in CHC predicts a poor response to antiviral therapy. The molecular mechanisms for the association between IR and HCV infection are not well defined.This review will elaborate on the clinical associations between CHC and IR and summarize current knowledge regarding the molecular mechanisms that potentially mediate HCV-associated IR.Mark W Douglas Jacob George 2009World Journal of Gastroenterology2009,15,35:16
14经NO-cGMP-PDE5通路治疗勃起功能障碍的中药研究进展显示文摘自1990年首次阐明小分子一氧化氮(NO)与阴茎平滑肌松弛之间有紧密联系后,20多年间ED的基础研究取得了很大进展。一氧化氮-环鸟苷酸-磷酸二酯酶5(NO-cGMP-PDE5)通路在ED治疗中的重要作用及相关研究为临床治疗ED提供了坚实的基础。中药治疗ED的历史悠久,目前已阐明部分中药经NO-cGMP-PDE5通路治疗ED的分子生物学机制。本文综述了相关研究。廖晖 Jacob Rajfer 2012中华男科学杂志2012,18,3:16
15一个关于工作场所学习的建议性概念框架:对人力资源开发理论建设与研究的启示显示文摘人力资源开发领域的学者和实践者都非常关注工作场所学习。关于正式培训和非正式学习,一直以来形成了大量的研究和讨论。本文从人力资源开发角度,结合已有的大量文献,提出了一个工作场所学习的概念性框架.框架包括三个互相作用的变量:学习的场所、在发展和传授学习经验时所制定的计划的程度和学习过程中培训者、推动者和其他人的角色。本文还讨论了这一框架对人力资源开发领域中理论建设和研究的启示。Ronald L. Jacobs 李宇晴(译) 2010中国职业技术教育2010,26,6:15
16Helicobacter pylori : Friend or foe?显示文摘Helicobacter pylori(H. pylori) is a Gram-negative spiral bacterium that is present in nearly half the world's population. It is the major cause of peptic ulcer disease and a recognized cause of gastric carcinoma. In addition, it is linked to non-ulcer dyspepsia, vitamin B12 deficiency, iron-deficient anemia and immune thrombocytopenic purpura. These conditions are indications for testing and treatment according to current guidelines. An additional indication according to the guidelines is 'anyone with a fear of gastric cancer' which results in nearly every infected person being eligible for eradication treatment. There may be beneficial effects of H. pylori in humans, including protection from gastroesophageal reflux disease and esophageal adenocarcinoma. In addition, universal treatment will be extremely expensive(more than $32 billion in the United States), may expose the patients to adverse effects such as anaphylaxis and Clostridium difficile infection, as well as contributing to antibiotic resistance. There may also be an as yet uncertain effect on the fecal microbiome. There is a need for robust clinical data to assist in decision-making regarding treatment of H. pylori infection.Stephen David Howard Malnick Ehud Melzer Malka Attali Gabriel Duek Jacob Yahav 2014World Journal of Gastroenterology2014,20,27:15
17短玻纤增强聚丙烯注射压力对微观结构和力学性能影响显示文摘报道了短玻纤增强聚丙烯复合材料中玻纤及注射压力对材料微观结构和力学性能的影响规律。实验结果表明 :随着玻纤含量提高 ,复合材料的拉伸强度提高 ,而断裂伸长率、冲击强度和熔体流动速率则下降。注射压力提高 ,拉伸试样芯层中玻纤的平均取向角下降 ,取向度提高 ,因而拉伸强度增大 ,冲击强度下降。皮层结构中玻纤沿熔体流动方向高度取向。聚丙烯球晶尺寸随玻纤含量增加而变小 ,规整度也变差 ,至 40 %时 ,聚丙烯已难以形成规整的球晶结构。钟明强 濮阳楠 益小苏 Jacobs O 2000复合材料学报2000,17,4:15
18From NAFLD to MAFLD:a“redefining”moment for fatty liver disease显示文摘The term non-alcoholic fatty liver disease(NAFLD)was coined in 1980 to characterize a disease similar to alcoholic fatty liver disease that developed in patients without a history of excessive alcohol intake.[1]Morphologically,NAFLD is characterized by excess fatty infiltration of the liver in the absence of known causes of liver disease(eg,alcohol,autoimmune liver disease,viral hepatitis,etc).The clinical manifestations of NAFLD(both hepatic and extrahepatic)depend on the outcome of complex interactions between its primary drivers including poor lifestyle habits and diet,a dysfunctional microbiota,genetic predisposition,and environmental cues that result in metabolic dysfunction and liver disease.However,bringing all patients with their markedly different clinical courses under the NAFLD umbrella belies its complexity and implies a homogeneous disease state that then negatively impacts clinical management and a deeper understanding of pathogenesis.With advances in current knowledge on the spectrum of fatty liver diseases,it is apparent that the fourdecade-old outdated term NAFLD can no longer serve to usefully describe a highly heterogeneous disease.The disease as we understand it today not only impacts patients who consume alcohol and those who do not,but also potentially impacts all patients with any form of liver disease,by acting as a disease modifier.[2]Kenneth IZheng Jian-Gao Fan Jun-Ping Shi Vincent Wai-Sun Wong Mohammed Eslam Jacob George Ming-Hua Zheng 2020Chinese Medical Journal2020,,19:14
19Recent advances in 2D,3D and higher-order topological photonics显示文摘Over the past decade,topology has emerged as a major branch in broad areas of physics,from atomic lattices to condensed matter.In particular,topology has received significant attention in photonics because light waves can serve as a platform to investigate nontrivial bulk and edge physics with the aid of carefully engineered photonic crystals and metamaterials.Simultaneously,photonics provides enriched physics that arises from spin-1 vectorial electromagnetic fields.Here,we review recent progress in the growing field of topological photonics in three parts.The first part is dedicated to the basics of topological band theory and introduces various two-dimensional topological phases.The second part reviews three-dimensional topological phases and numerous approaches to achieve them in photonics.Last,we present recently emerging fields in topological photonics that have not yet been reviewed.This part includes topological degeneracies in nonzero dimensions,unidirectional Maxwellian spin waves,higher-order photonic topological phases,and stacking of photonic crystals to attain layer pseudospin.In addition to the various approaches for realizing photonic topological phases,we also discuss the interaction between light and topological matter and the efforts towards practical applications of topological photonics.Minkyung Kim Zubin Jacob Junsuk Rho 2020Light(Science & Applications)2020,9,1:14
20Sirolimus inhibits growth of human hepatoma cells alone or combined with tacrolimus, while tacrolimus promotes cell growth显示文摘AIM: Standard immunosuppression after organ transplantation stimulates tumor growth. Sirolimus has a strong antiproliferative and a tumor inhibiting effect. The purpose is to assess the effect on tumor growth of the immunosuppressive compounds sirolimus and tacrolimus alone and in combination on cells of human hepatocellular carcinoma.METHODS: We used the human cell lines SK-Hep 1 and Hep 3B derived from hepatocellular carcinoma. Proliferation analyses after treatment with sirolimus, tacrolimus, or the combination of both were performed. FACS analyses were done to reveal cell cycle changes and apoptotic cell death. The expression of apoptosis-related proteins was estimated by Western blots.RESULTS: Sirolimus alone or combined with tacrolimus inhibited the growth of both cell lines after 5 d by up to 35% in SK-Hep 1 cells, and by up to 68% in Hep 3B cells at 25 ng/mL. Tacrolimus alone stimulated the growth by 12% after 5 ng/mL and by 25% after 25 ng/mL in Hep 3B cells. We found an increase of apoptotic Hep 3B cells from 6 to 16%, and a G1-arrest in SK-Hep 1 cells with an increase of cells from 61 to 82%, when sirolimus and tacrolimus were combined. Bcl-2 was down-regulated in Hep 3B, but not in SK-Hep 1 cells after combined treatment.CONCLUSION: Sirolimus appears to inhibit the growth of hepatocellular carcinoma cells alone and in combination with tacrolimus. Sirolimus seems to inhibit the growth stimulation of tacrolimus.Guido Schumacher Marijke Oidtmann Anne Rueggeberg Dietmar Jacob Sven Jonas Jan M. Langrehr Ruth Neuhaus Marcus Bahra Peter Neuhaus 2005World Journal of Gastroenterology2005,11,10:14
返回顶部 每页显示:
共974页 首页 上一页 第1页 下一页 末页 /974 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费