维普中文期刊产品整合服务
81篇 您的检索式:作者名="Linlin SUN"
    题名 作者 年代 出处 被引量
1Inhibition of SARS-CoV-2 (previously 2019-nCoV) infection by a highly potent pan-coronavirus fusion inhibitor targeting its spike protein that harbors a high capacity to mediate membrane fusion显示文摘The recent outbreak of coronavirus disease(COVID-19)caused by SARS-CoV-2 infection in Wuhan,China has posed a serious threat to global public health.To develop specific anti-coronavirus therapeutics and prophylactics,the molecular mechanism that underlies viral infection must first be defined.Therefore,we herein established a SARS-CoV-2 spike(S)protein-mediated cell-cell fusion assay and found that SARS-CoV-2 showed a superior plasma membrane fusion capacity compared to that of SARS-CoV.We solved the X-ray crystal structure of six-helical bundle(6-HB)core of the HR1 and HR2 domains in the SARS-CoV-2 S protein S2 subunit revealing that several mutated amino acid residues in the HR1 domain may be associated with enhanced interactions with the HR2 domain.We previously developed a pan-coronavirus fusion inhibitor,EK1,which targeted the HR!domain and could inhibit infection by divergent human coronaviruses tested,including SARS-CoV and MERS-CoV.Here we generated a series of lipopeptides derived from EK1 and found that EK1C4 was the most potent fusion inhibitor against SARS-CoV-2 S protein-mediated membrane fusion and pseudovirus infection with IC50s of 1.3 and 15.8 nM,about 241-and 149-fold more potent than the original EK1 peptide,respectively.EK1C4 was also highly effective against membrane fusion and infection of other human coronavirus pseudoviruses tested,including SARS-CoV and MERS-CoV,as well as SARSr-CoVs,and potently inhibited the replication of 5 live human coronaviruses examined,including SARS-CoV-2.Intranasal application of EK1C4 before or after challenge with HCoV-OC43 protected mice from infection,suggesting that EK1C4 could be used for prevention and treatment of infection by the currently circulating SARS-CoV-2 and other emerging SARSr-CoVs.Shuai Xia Meiqin Liu Chao Wang Wei Xu Qiaoshuai Lan Siliang Feng Feifei Qi Linlin Bao Lanying Du Shuwen Liu Chuan Qin Fei Sun Zhengli Shi Yun Zhu Shibo Jiang Lu Lu 2020Cell Research2020,30,4:81
2Exosomal PD-L1 harbors active defense function to suppress T cell killing of breast cancer cells and promote tumor growth显示文摘Yi Yang Chia-Wei Li Li-Chuan Chan Yongkun Wei Jung-Mao Hsu Weiya Xia Jong-Ho Cha Junwei Hou Jennifer L. Hsu Linlin Sun Mien-Chie Hung 2018Cell Research2018,28,8:35
3Palmitoylation stabilizes PD-L1 to promote breast tumor growth显示文摘Dear Editor,PD-L1 is a well-known transmembrane protein, which is highly expressed on many types of cancer cells. By binding to its receptor PD-1 on T cells, PD-L1 significantly inhibits T cells activation and activity, and thus plays a pivotal role in driving the escape of tumor cells from immune surveillance.^1.Yi Yang Jung-Mao Hsu Linlin Sun Li-Chuan Chan Chia-Wei Li Jennifer L. Hsu Yongkun Wei Weiya Xia Junwei Hou Yufan Qiu Mien-Chie Hung 2019Cell Research2019,29,1:14
4Synthesis and catalytic performance of macroporous La1-xCexCoO3 perovskite oxide catalysts with high oxygen mobility for catalytic combustion of soot显示文摘The disordered macroporous-mesoporous La1-xCexCoO3 catalysts were prepared by complexcombustion method with ethylene glycol as complexing agent at relatively low calcination temperature.The samples were characterized by means of X-ray diffraction,N2 adsorption-ndash;desorption,Xray photoelectron spectroscopy,transmission electron microscopy,hydrogen temperature-programmed reduction and soot temperature-programmed reduction,and so on.The results show that the use of complexing agent and relatively low calcination temperature increase the specific surface area of the catalyst and have abundant pore structure.The Ce ions introduced into lattice of LaCoO3 mainly exist in the form of tetravalent.At the same time,Ce ions enhance the redox performance of the catalyst and the mobility of active oxygen species,which enhances the catalytic activity of the catalyst for soot combustion.The results of activity test show that La0.9Ce0.1CoO3 catalyst exhibits the highest activity in the absence of NO and NO2,and its T10,T50 and T90 are 371,444,and 497℃,respectively.At the same time,a possible reaction mechanism is proposed in this study based on the turnover frequency(TOF) calculated by isothermal anaerobic titrations,XPS and XRD results.Jiachen Sun Zhen Zhao Yazhao Li Xuehua Yu Linlin Zhao Jianmei Li Yuechang Wei Jian Liu 2020Journal of Rare Earths2020,38,6:8
5Intracellular and Extracellular Phosphatidylinositol 3-Phosphate Produced by Phytophthora Species Is Important for Infection显示文摘Phytophthora 病原体生产的 RxLR 受动器被建议了把 3 磷酸盐(PtdIns (3 ) P ) 绑在 phosphatidylinositol 调停他们的 translocation 进主人房间或到增加他们在 planta 的稳定性。因为在植物的 PtdIns (3 ) P 的层次是低的,我们检验了 Phytophthora 种类是否可以生产 PtdIns (3 ) 支持感染的 P。我们观察了 P 特定的 GFP 生物传感器能绑在 P 的那 PtdIns (3 ) 。parasitica 和 P。sojae hyphae 短暂地在 Nicotiana benthamiana 的感染期间离开 secreting 生物传感器,建议 hyphae 暴露了 PtdIns (3 ) 他们的血浆膜上的 P 或分泌 PtdIns (3 ) P。phosphatidylinositol 3-kinases (PI3K ) 的 Silencing 基因,有 LY294002 的处理,或 PtdIns (3 ) 的表示由 P 的 P 有约束力的蛋白质。sojae 在大豆上减少了病原体的毒力,显示综合病原体的 PtdIns (3 ) P 为完整的毒力被要求。PtdIns (3 ) 的分泌物 P 有约束力的蛋白质或由 N 的 PI3P-5-kinase。benthamiana 叶子显著地由 P 增加了抵抗的水平到感染。parasitica 和 P。capsici。一起,我们的结果支持假设那 Phytophthora 种生产外部 PtdIns (3 ) 帮助感染的 P,例如支持 RxLR 受动器的入口进宿主细胞。我们的结果源于 P。sojae RxLR 受动器 Avr1b 证实 N 终点和这个受动器的 C 终点能绑 PtdIns (3 ) P。Shan Lu 2013Molecular Plant2013,6,5:7
6Contrasting Characteristics of the Surface Energy Balance between the Urban and Rural Areas of Beijing显示文摘A direct comparison of urban and rural surface energy balances, as well as a variety of other variables including incoming shortwave/longwave radiation and aerosol optical depth, is conducted for the Beijing metropolitan area. The results indicate that, overall, the urban area receives a smaller amount of incoming shortwave radiation but a larger amount of incoming longwave radiation. However, comparisons in the aerosol optical depth and cloud fraction at the two locations suggest that neither aerosol optical depth nor cloud fraction alone can explain the difference in the incoming shortwave radiation. The urban–rural differences in the incoming longwave radiation are unlikely to be caused by the presence of more abundant greenhouse gases over the urban area, as suggested by some previous studies, given that water vapor is the most dominant greenhouse gas and precipitable water is found to be less in urban areas. The higher incoming longwave radiation observed over the urban area is mostly likely due to the higher temperatures of the ambient air. The urban area is also found to always produce higher sensible heat fluxes and lower latent heat fluxes in the growing season. Furthermore, the urban area is associated with a larger amount of available energy(the sum of sensible and latent heat fluxes) than the rural area, except in May and October when evapotranspiration in the rural area significantly exceeds that in the urban area. This study provides observational evidence of urban–rural contrasts in relevant energy-balance components that plausibly arise from urban–rural differences in atmospheric and land-surface conditions.WANG Linlin GAO Zhiqiu MIAO Shiguang GUO Xiaofeng SUN Ting Maofeng LIU Dan LI 2015Advances in Atmospheric Sciences2015,32,4:7
7Optimal power allocation for secure directional modulation networks with a full-duplex UAV user显示文摘This paper makes an investigation of a secure unmanned aerial vehicle(UAV)-aided communication network based on directional modulation(DM). In this network, ground base station(GBS) acts as a control center to transmit confidential message and artificial noise(AN). The UAV user, moving along a linear flight trajectory, is intended to receive the useful information from GBS. At the same time, it also sends AN signals to further interference eavesdropper’s channel. Aiming at maximizing secrecy rate during the UAV flight process, a joint optimization problem is formulated with respect to power allocation(PA)factors, beamforming vector and AN projection matrices. For simplicity, maximum rate transmission, nullspace projection and the leakage-based method are applied to form the transmit beamforming vector, AN projection matrix at GBS, and AN projection vector at UAV user, respectively. Following this, the optimization problem reduces to a bivariate optimization programme with two PA factors. An alternating iterative algorithm(AIA) is proposed to optimize the two PA factors. Simulation results demonstrate that, compared to the half-duplex(HD) mode, the proposed strategy for full-duplex(FD) mode achieves a higher secrecy rate(SR) and outperforms the FD mode with fixed PA strategy.Zaoyu LU Linlin SUN Shuo ZHANG Xiaobo ZHOU Jinyong LIN Wenlong CAI Jin WANG Jinhui LU Feng SHU 2019Science China(Information Sciences)2019,62,8:6
8A simple aptamer molecular beacon assay for rapid detection of aflatoxin B1显示文摘Aflatoxin B1(AFB1)is a highly toxic mycotoxin,and rapid and sensitive detection of AFB1 is in demand for food safety and environmental analysis.Here we described a simple aptamer molecular beacon assay for rapid detection of aflatoxin B1(AFB1)by using an aptamer with a fluorescein(FAM)label at the 50 end and a fluorescence quencher(black hole quencher 1,BHQ1)at the 30 end.In the presence of AFB1,the aptamer probe bound with AFB1 and induced a hairpin structure,drawing FAM and BHQ1 into close proximity and leading to fluorescence quenching.This assay allowed for a detection limit of 3.9 nmol/L and a dynamic range from 3.9 nmol/L to 4 mmol/L.Specificity test showed other mycotoxins including ochratoxin A,ochratoxin B,fumonisin B1,fumonisin B2,and zearalenone had negligible influence on detection of AFB1.AFB1 spiked in diluted liquor wine,methanol,or corn flour samples was successfully detected by using this aptamer probe,and the assay showed potential for real sample analysis.Chao Wang Linlin Sun Qiang Zhao 2019Chinese Chemical Letters2019,30,5:6
9Interannual variability of the Antarctic Circumpolar Current strength based on merged altimeter data显示文摘Interannual variability of the Antarctic Circumpolar Current (ACC) strength is studied in stream-coordinate with twenty-year Absolute Dynamic Topography data from satellite altimetry. The stream-coordinate projection method separates the ACC from adjacent subtropical and subpolar gyres, enabling consideration of the zonal asymmetry of the ACC rather than assuming that the ACC is a purely zonal flow. It is shown that the ACC strength has large interannual variations with two recent peaks around 2000 and 2009. The interannual variability appears mainly in the Indo-Pacific sector of the Southern Ocean and the strongest signal is located south of Australia. The intensification of the westerly wind in 1998 and 2008 appears to cause the strengthening of the ACC via baroclinic processes.ZHANG LinLin SUN Che HU DunXin 2012Chinese Science Bulletin2012,57,16:6
10Upregulation of annexin A5 affects the biological behaviors of lung squamous carcinoma cells in vitro显示文摘Annexin A5 is a Ca2?-dependent phospholipidbinding protein and protein kinase C inhibitory protein. It has a potential role in cellular signal transduction, inflammation, growth and differentiation. In this study, we evaluated the expression of this protein in lung tumor tissues and subsequently established a NCI-H520 cell line that stably expresses the wild-type ANXA5 gene to determine the effects of annexin A5 upregulation on the cell morphology, proliferation and metastasis potential in vitro.The effects of annexin A5 on NCI-H520 cells were tested by crystal violet staining, CCK-8 assay, scratch wound assay, and Transwell assay. The expressions of Akt,PCNA, vimentin, and E-cadherin were examined by Western blot assay. In this study, we demonstrated that annexin A5 is expressed at lower levels in tumor tissues compared with normal tissues. Additionally, the upregulation of this protein may inhibit the proliferation, migration, and invasion abilities of NCI-H520 cells in vitro. The transfected cells were arrested in the G1/S phase of the cell cycle, and the expression levels of Akt, PCNA and Vimentin were downregulated, while E-cadherin was upregulated.Linlin Gong Haoqi Zhao Lan Wang Bing Sun Lijun Yu Xiaoyu Qi Xin Zhou Liyuan Zhang Hongwei Guan Shujuan Shao 2014Chinese Science Bulletin2014,59,28:6
11Histone deacetylase 6 and cytoplasmic linker protein 170 function together to regulate the motility of pancreatic cancer cells显示文摘胰腺的癌症是有在所有主要人的恶意之中的最糟的预后的破坏疾病。很快转移的倾向显著地作出贡献到胰腺的癌症的高度好攻击的特征。位于这下面的分子的机制留下逃犯,并且涉及胰腺的癌症房间活动性的控制的蛋白质充分没被描绘。在这研究,我们发现那 histone deacetylase 6 (HDAC6 ) ,班 II HDAC 家庭的一个成员,高度在人的胰腺的癌症纸巾在蛋白质和 mRNA 层次被表示。HDAC6 显然不影响胰腺的癌症房间增长或房间周期前进。相反,它显著地支持胰腺的癌症房间的活动性。进一步的研究表明 HDAC6 与细胞质的连接器蛋白质 170 交往(CLIP-170 ) 并且这二蛋白质一起工作刺激胰腺的癌症房间的迁居。这些调查结果提供机械学的卓见进胰腺的癌症的前进并且为这恶意的管理作为一个潜在的目标建议 HDAC6。Dengwen Li Xiaodong Sun Linlin Zhang Bing Yan Songbo Xie Ruming Liu Min Liu Jun Zhou 2014Protein & Cell2014,5,3:5
12Spatial structure optimization of mountainous abandoned mine land reuse based on system dynamics model and CLUE-S model显示文摘The mountainous abandoned mine land is often distributed in the fomi of fragmented patches. Therefore, it can greatly promote the reuse value of abandoned mine land and relieve the pressure of land demand to realize the rational reuse of abandoned mine land based on the future land use structure and spatial layout of mountainous area. In this paper, optimization of the spatial structure of mountainous abandoned mine land reuse is realized through the system dynamics model and CLUE-S model. Mentougou district, Beijing, China is selected as the research area. System dynamics model with feedback functions is constructed to simulate land use structure from 2011 to 2025, which is taken as the quanfiiative constraint on spatial structure optimization. CLUE-S model with neighborhood analysis function is applied to simulate future land use spatial structure. The simulation result layer is superimposed with the abandoned mine land distribution layer and the optimized spatial structure of abandoned mine land reuse then is determined, checked by reuse suitability evaluation. The result shows that abandoned mine land can be fully optimized as other land use types according to demand, and the reuse directions are water conservancy facilities land, urban land, rural residential land, tourism land, garden land, woodland and grassland. The trend of abandoned mine land reuse tend to be consistent with land use types of neighboring patches. This study can provide theoretical reference for the practices of mountainous abandoned mine land reuse.Linlin Cheng Haiyuan Sun Ye Zhang Shaofeng Zhen 2019International Journal of Coal Science & Technology2019,6,1:5
13Machine-learning-based high-resolution DOA measurement and robust directional modulation for hybrid analog-digital massive MIMO transceiver显示文摘At hybrid analog-digital(HAD)transceiver,an improved HAD estimation of signal parameters via rotational invariance techniques(ESPRIT),called I-HAD-ESPRIT,is proposed to measure the direction of arrival(DOA)of a desired user,where the phase ambiguity due to HAD structure is dealt with successfully.Subsequently,a machine-learning(ML)framework is proposed to improve the precision of measuring DOA.Meanwhile,we find that the probability density function(PDF)of DOA measurement error(DOAME)can be approximated as a Gaussian distribution by the histogram method in ML.Then,a slightly large training data set(TDS)and a relatively small real-time set(RTS)of DOA are formed to predict the mean and variance of DOA/DOAME in the training stage and real-time stage,respectively.To improve the precisions of DOA/DOAME,three weight combiners are proposed to combine the-maximum-likelihood-learning outputs of TDS and RTS.Using the mean and variance of DOA/DOAME,their PDFs can be given directly,and we propose a robust beamformer for directional modulation(DM)transmitter with HAD by fully exploiting the PDF of DOA/DOAME,especially a robust analog beamformer on RF chain.Simulation results show that:(1)the proposed I-HAD-ESPRIT can achieve the HAD Cramer-Rao lower bound(CRLB);(2)the proposed ML framework performs much better than the corresponding real-time one without training stage;(3)the proposed robust DM transmitter can perform better than the corresponding non-robust ones in terms of secrecy rate.Zhihong ZHUANG Ling XU Jiayu LI Jinsong HU Linlin SUN Feng SHU Jiangzhou WANG 2020Science China(Information Sciences)2020,63,8:5
14An efficient and recyclable iron(III)-containing imidazolium salt catalyst for cross-coupling of aryl Grignard reagents with alkyl halides显示文摘1,3-Bis(2,6-diisopropylphenyl)imidazolium chloride, [DIPrim]Cl, was used to produce a novel iron(III)-containing imidazolium salt [DIPrim][FeCl 4 ], which included a N,N-diarylimidazolium cation (R = 2,6-diisopropylphenyl), [DIPrim] + , and tetrachloroferrate(III) anion, [FeCl 4 ]. This compound was an effective and easy-to-use catalyst for the cross-coupling of aryl Grignard reagents with primary and secondary alkyl halides bearing -hydrogens. After simply decanting the cross-coupling product in the ether layer, [DIPrim][FeCl 4 ] could be reused in at least four successive runs without significant loss of catalytic activity.YAN ChunHui WANG LinLin GAO HuanHuan SUN HongMei SHEN Qi 2012Chinese Science Bulletin2012,57,16:4
15Revisiting the Concentration Observations and Source Apportionment of Atmospheric Ammonia显示文摘While China’s Air Pollution Prevention and Control Action Plan on particulate matter since 2013 has reduced sulfate significantly,aerosol ammonium nitrate remains high in East China.As the high nitrate abundances are strongly linked with ammonia,reducing ammonia emissions is becoming increasingly important to improve the air quality of China.Although satellite data provide evidence of substantial increases in atmospheric ammonia concentrations over major agricultural regions,long-term surface observation of ammonia concentrations are sparse.In addition,there is still no consensus on whether agricultural or non-agricultural emissions dominate the urban ammonia budget.Identifying the ammonia source by nitrogen isotope helps in designing a mitigation strategy for policymakers,but existing methods have not been well validated.Revisiting the concentration measurements and identifying source apportionment of atmospheric ammonia is thus an essential step towards reducing ammonia emissions.Yuepeng PAN Mengna GU Yuexin HE Dianming WU Chunyan LIU Linlin SONG Shili TIAN Xuemei LÜ Yang SUN Tao SONG Wendell WWALTERS Xuejun LIU Nicholas AMARTIN Qianqian ZHANG Yunting FANG Valerio FERRACCI Yuesi WANG 2020Advances in Atmospheric Sciences2020,37,9:4
16SARS-CoV-2 infection aggravates chronic comorbidities of cardiovascular diseases and diabetes in mice显示文摘Background:Cardiovascular diseases(CVDs)and diabetes mellitus(DM)are top two chronic comorbidities that increase the severity and mortality of COVID-19.However,how SARS-CoV-2 alters the progression of chronic diseases remain unclear.Methods:We used adenovirus to deliver h-ACE2 to lung to enable SARS-CoV-2 infection in mice.SARS-CoV-2’s impacts on pathogenesis of chronic diseases were studied through histopathological,virologic and molecular biology analysis.Results:Pre-existing CVDs resulted in viral invasion,ROS elevation and activation of apoptosis pathways contribute myocardial injury during SARS-CoV-2 infection.Viral infection increased fasting blood glucose and reduced insulin response in DM model.Bone mineral density decreased shortly after infection,which associated with impaired PI3K/AKT/mTOR signaling.Conclusion:We established mouse models mimicked the complex pathological symptoms of COVID-19 patients with chronic diseases.Pre-existing diseases could impair the inflammatory responses to SARS-CoV-2 infection,which further aggravated the pre-existing diseases.This work provided valuable information to better understand the interplay between the primary diseases and SARS-CoV-2 infection.Yuanwu Ma Dan Lu Linlin Bao Yajin Qu Jiangning Liu Xiaolong Qi Lei Yu Xu Zhang Feifei Qi Qi Lv Yunpeng Liu Xudong Shi Caixian Sun Jing Li Jie Wang Yunlin Han Kai Gao Wei Dong Ning Liu Shan Gao Jing Xue Qiang Wei Sidan Pan Hong Gao Lianfeng Zhang Chuan Qin 2021Animal Models and Experimental Medicine2021,4,1:3
17Simultaneous optical and electrochemical recording of single nanoparticle electrochemistry显示文摘单个 nanoparticle 碰撞为由与电极表面在随机的碰撞期间决定短暂水流学习单个 nanoparticles 的电气化学的活动变得流行。然而,真希望,电气化学的水流被测量,识别并且描绘为在一个碰撞事件的一座特定的当前的山峰负责的单个粒子仍然保持挑战性;这妨碍结构活动关系的理解。此处,我们报导同时光、电气化学单个 nanoparticle 碰撞记录;电气化学的信号与单个 nanoparticle 的活动相应,并且光信号揭示一样的 nanoparticle 的尺寸和地点。因而,结构(光信号) 活动(电气化学的信号) 关系能在单个 nanoparticle 水平被阐明;这包括电池, electrocatalysts,和电气化学的传感器为各种各样的应用有含意。另外,我们的以前的研究建议了一个 optical-to-electrochemical 变换模型独立地从光信号计算单个 nanoparticles 的电子转移率。同时光、电气化学记录在现在的工作完成了启用 optical-to-electrochemical 变换模型的直接、量的确认。Linlin Sun Yimin Fang Zhimin Li Wei Wang Hongyuan Chen 2017Nano Research2017,10,5:3
18Friction and Wear Properties of TiAl and Ti_2AlN/TiAl Composites at High Temperature显示文摘The high-temperature friction and wear properties of TiAl alloys and Ti2 AlN/TiAl composites(TTC) in contact with nickel-based superalloy were studied.The results showed that,at 800 and 1 000 ℃,the coefficient of the friction(COF) decreased with the increase of sliding velocity and the wear loss of the TTC decreased with the increase of volume fraction of Ti2 AlN.The wear mechanisms of the pairs are adhesive wear and the wear debris mainly comes from the contacting nickel-based superalloy.The intergranular fracture and the cracking of the phase boundary in the lamellar structure are the wear mode of TiAl alloy.The wear mode of TTC is phase boundary fracture and adhesive spalling.The abrasive resistance of TTC is slightly higher than that of TiAl alloy.孙东立 SUN Tao WANG Qing HAN Xiuli GUO Linlin 2013Journal of Wuhan University of Technology(Materials Science)2013,28,5:3
19In-Situ SHRIMP U-Pb Dating of Xenotime Outgrowth on Detrital Zircon Grains from the Changzhougou Formation of the Ming Tomb District, Beijing显示文摘SHRIMP U-Pb dating of diagenetic xenotime from sedimentary rocks has provided age constraints for sedimentary diagenesis(Mc Naughton et al.,1999;Fletcher et al.,2000;England et al.,2001;Rasmussen et al.,2004;Vallini et al.,2007).Xenotime(YPO4)may grow during early diagenesis,typically being present as a trace constituent in siliciclastic sedimentary rocks(Rasmussen,2005),in the form of syntaxial outgrowths on detrital zircon grains.Diagenetic xenotime occurs inSHI Yuruo Kennedy ALLEN Aleinikoff JOHN SONG Tianrui LI Linlin SUN Huiyi 2015Acta Geologica Sinica(English Edition)2015,89,1:3
20Changes in dendritic cells and dendritic cell subpopulations in peripheral blood of recipients during acute rejection after kidney transplantation显示文摘Ma Linlin Liu Yong Wu Junjie Xu Xiuhong Liu Fen Feng Lang Xie Zelin Tang Yawang Sun Wen Guo Hongbo Zhang Lei Lin Jun Tian Ye 2014Chinese Medical Journal2014,,8:3
返回顶部 每页显示:
共5页 首页 上一页 第1页 下一页 末页 /5 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