Pub Date : 2010-06-13DOI: 10.1109/ICMB-GMR.2010.61
V. Gonçalves, P. Dobbelaere
M2M communications are capturing the attention of many stakeholders from application developers to mobile operators. Recent initiatives of the GSMA and of mobile operators show their interest in finding new sources of revenue through the adoption of wireless connectivity in a wide range of devices. A route to market these M2M devices can thus involve creating a platform of services that adds value and functionality to the devices and is a result of a combination of synergies between device manufacturers, application developers and mobile operators. Based on specific technical scenarios, this paper discusses several business scenarios wherein these stakeholders assume different levels of control over the customer relationship and the assets that make up the value proposition.
{"title":"Business Scenarios for Machine-to-Machine Mobile Applications","authors":"V. Gonçalves, P. Dobbelaere","doi":"10.1109/ICMB-GMR.2010.61","DOIUrl":"https://doi.org/10.1109/ICMB-GMR.2010.61","url":null,"abstract":"M2M communications are capturing the attention of many stakeholders from application developers to mobile operators. Recent initiatives of the GSMA and of mobile operators show their interest in finding new sources of revenue through the adoption of wireless connectivity in a wide range of devices. A route to market these M2M devices can thus involve creating a platform of services that adds value and functionality to the devices and is a result of a combination of synergies between device manufacturers, application developers and mobile operators. Based on specific technical scenarios, this paper discusses several business scenarios wherein these stakeholders assume different levels of control over the customer relationship and the assets that make up the value proposition.","PeriodicalId":138929,"journal":{"name":"2010 Ninth International Conference on Mobile Business and 2010 Ninth Global Mobility Roundtable (ICMB-GMR)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134187210","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-06-13DOI: 10.1109/ICMB-GMR.2010.46
Maiju Vuolle, Jonna Käpylä
This paper reviews what theoretical models of technology evaluation are used in mobile work context. We examine how these models are extended to take mobility and organisational contexts into account. We found that most of the extensions were related to mobile task and mobile technology aspects but also costs, impacts and organisational viability were added. The paper provides discussion on the strengths and weaknesses of these models and suggests how the combination of these models could be developed further.
{"title":"Theoretical Evaluation Models Used in Mobile Work Context","authors":"Maiju Vuolle, Jonna Käpylä","doi":"10.1109/ICMB-GMR.2010.46","DOIUrl":"https://doi.org/10.1109/ICMB-GMR.2010.46","url":null,"abstract":"This paper reviews what theoretical models of technology evaluation are used in mobile work context. We examine how these models are extended to take mobility and organisational contexts into account. We found that most of the extensions were related to mobile task and mobile technology aspects but also costs, impacts and organisational viability were added. The paper provides discussion on the strengths and weaknesses of these models and suggests how the combination of these models could be developed further.","PeriodicalId":138929,"journal":{"name":"2010 Ninth International Conference on Mobile Business and 2010 Ninth Global Mobility Roundtable (ICMB-GMR)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125848686","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-06-13DOI: 10.1109/ICMB-GMR.2010.34
J. F. M. Bernal, Luca Ardito, M. Morisio, P. Falcarin
Looking for optimizing the battery consumption is an open issue, and we think it is feasible if we analyze the battery consumption behavior of a typical context-aware application to reduce context-aware operations at runtime. This analysis is based on different context sensors configurations. Actually existing context-aware approaches are mainly based on collecting and sending context data to external components, without taking into account how expensive are these operations in terms of energy consumption. As a first result of our work in progress, we are proposing a way for reducing the context data publishing. We have designed a testing battery consumption architecture supported by Nokia Energy Profiler tool to verify consumption in different scenarios.
{"title":"Towards an Efficient Context-Aware System: Problems and Suggestions to Reduce Energy Consumption in Mobile Devices","authors":"J. F. M. Bernal, Luca Ardito, M. Morisio, P. Falcarin","doi":"10.1109/ICMB-GMR.2010.34","DOIUrl":"https://doi.org/10.1109/ICMB-GMR.2010.34","url":null,"abstract":"Looking for optimizing the battery consumption is an open issue, and we think it is feasible if we analyze the battery consumption behavior of a typical context-aware application to reduce context-aware operations at runtime. This analysis is based on different context sensors configurations. Actually existing context-aware approaches are mainly based on collecting and sending context data to external components, without taking into account how expensive are these operations in terms of energy consumption. As a first result of our work in progress, we are proposing a way for reducing the context data publishing. We have designed a testing battery consumption architecture supported by Nokia Energy Profiler tool to verify consumption in different scenarios.","PeriodicalId":138929,"journal":{"name":"2010 Ninth International Conference on Mobile Business and 2010 Ninth Global Mobility Roundtable (ICMB-GMR)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125524880","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-06-13DOI: 10.1109/ICMB-GMR.2010.42
H. Bouwman, M. D. Reuver, F. Hampe, C. Carlsson, P. Walden
In this paper, the focus is on finding an answer to the question why Mobile R&D prototypes are not being implemented. To find an explanation, we formulated propositions, moving from a macro-economic view on innovation, via innovation strategies to explanations that focus on the design of the artefact and the supporting business models. We concluded that, in the design process, the focus is on the business models, at the expense of managing relationships with potential providers of the mobile service. In our view, design approaches should therefore focus on the artefact as well as the underlying business models, but managing the relationship with potential service providers has to be part of a project from the very beginning.
{"title":"Mobile R&D Prototypes: What is Hampering Market Implementation?","authors":"H. Bouwman, M. D. Reuver, F. Hampe, C. Carlsson, P. Walden","doi":"10.1109/ICMB-GMR.2010.42","DOIUrl":"https://doi.org/10.1109/ICMB-GMR.2010.42","url":null,"abstract":"In this paper, the focus is on finding an answer to the question why Mobile R&D prototypes are not being implemented. To find an explanation, we formulated propositions, moving from a macro-economic view on innovation, via innovation strategies to explanations that focus on the design of the artefact and the supporting business models. We concluded that, in the design process, the focus is on the business models, at the expense of managing relationships with potential providers of the mobile service. In our view, design approaches should therefore focus on the artefact as well as the underlying business models, but managing the relationship with potential service providers has to be part of a project from the very beginning.","PeriodicalId":138929,"journal":{"name":"2010 Ninth International Conference on Mobile Business and 2010 Ninth Global Mobility Roundtable (ICMB-GMR)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122158156","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-06-13DOI: 10.1109/ICMB-GMR.2010.39
Ben D. Eaton, S. Elaluf-Calderwood, C. Sørensen
This paper investigates how the concepts of value network analysis and control points can be used as a valid methodology to identify profitable business models for the mobile telecoms industry. The paper's focus of analysis is on application platforms that result from the generative system that is the mobile Internet combined with mobile devices, further enhanced by advanced user interaction modalities. Conceptual parallels are drawn between the concerns of “cyberlaw” scholars and those of companies that make up the mobile telecoms industry in order to provide a theoretical basis for this paper. "Cyberlaw" scholarship concerns the need to legally control, or regulate, the Internet against abuse, whilst maintaining its innovative essence. The mobile telecoms industry seeks to control the mobile Internet for profit, whilst maintaining its capacity for innovative and appealing content and services. As part of this research, current and emergent revenue models are identified for the components that make up the mobile industry. Methods of analysing these business models are proposed using value networks and control points, which are functional areas in a value chain or network where power can be exercised, as the unit of analysis. This method of analysis is illustrated with an initial example and an agenda for further research is outlined. The work covered in this paper is part of a current research programme, namely the User Interfaces for Breakthrough Services work area of the Core 5 Research Programme of the Virtual Centre of Excellence in Mobile & Personal Communications (Mobile VCE). The programme is jointly funded by the Mobile VCEs’ industrial member companies and the UK Government, through the Engineering and Physical Sciences Research Council (EPSRC).
{"title":"The Role of Control Points in Determining Business Models for Future Mobile Generative Systems","authors":"Ben D. Eaton, S. Elaluf-Calderwood, C. Sørensen","doi":"10.1109/ICMB-GMR.2010.39","DOIUrl":"https://doi.org/10.1109/ICMB-GMR.2010.39","url":null,"abstract":"This paper investigates how the concepts of value network analysis and control points can be used as a valid methodology to identify profitable business models for the mobile telecoms industry. The paper's focus of analysis is on application platforms that result from the generative system that is the mobile Internet combined with mobile devices, further enhanced by advanced user interaction modalities. Conceptual parallels are drawn between the concerns of “cyberlaw” scholars and those of companies that make up the mobile telecoms industry in order to provide a theoretical basis for this paper. \"Cyberlaw\" scholarship concerns the need to legally control, or regulate, the Internet against abuse, whilst maintaining its innovative essence. The mobile telecoms industry seeks to control the mobile Internet for profit, whilst maintaining its capacity for innovative and appealing content and services. As part of this research, current and emergent revenue models are identified for the components that make up the mobile industry. Methods of analysing these business models are proposed using value networks and control points, which are functional areas in a value chain or network where power can be exercised, as the unit of analysis. This method of analysis is illustrated with an initial example and an agenda for further research is outlined. The work covered in this paper is part of a current research programme, namely the User Interfaces for Breakthrough Services work area of the Core 5 Research Programme of the Virtual Centre of Excellence in Mobile & Personal Communications (Mobile VCE). The programme is jointly funded by the Mobile VCEs’ industrial member companies and the UK Government, through the Engineering and Physical Sciences Research Council (EPSRC).","PeriodicalId":138929,"journal":{"name":"2010 Ninth International Conference on Mobile Business and 2010 Ninth Global Mobility Roundtable (ICMB-GMR)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123395465","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-06-13DOI: 10.1109/ICMB-GMR.2010.28
Theodora Zarmpou, Vaggelis Saprikis, M. Vlachopoulou, Rodoula H. Tsiotsou
This study presents a conceptual model that combines perceived ease of use, perceived usefulness, familiarity, adoption intention and the actual consumers’ adoption in order to predict user mobile transaction acceptance regarding mobile buying products and making reservations. The proposed model is empirically tested using data collected from a survey in Greece. The structural equation modeling is used to evaluate the suggested model and confirmatory factor analysis verifies the reliability and validity of the measurement model. The findings show that all the variables have a direct effect on people’s decision on conducting transactions with the exception of perceived ease of use. The implication of this work to both researchers and practitioners is discussed.
{"title":"Predicting the Adoption of Mobile Transactions: An Exploratory Investigation in Greece","authors":"Theodora Zarmpou, Vaggelis Saprikis, M. Vlachopoulou, Rodoula H. Tsiotsou","doi":"10.1109/ICMB-GMR.2010.28","DOIUrl":"https://doi.org/10.1109/ICMB-GMR.2010.28","url":null,"abstract":"This study presents a conceptual model that combines perceived ease of use, perceived usefulness, familiarity, adoption intention and the actual consumers’ adoption in order to predict user mobile transaction acceptance regarding mobile buying products and making reservations. The proposed model is empirically tested using data collected from a survey in Greece. The structural equation modeling is used to evaluate the suggested model and confirmatory factor analysis verifies the reliability and validity of the measurement model. The findings show that all the variables have a direct effect on people’s decision on conducting transactions with the exception of perceived ease of use. The implication of this work to both researchers and practitioners is discussed.","PeriodicalId":138929,"journal":{"name":"2010 Ninth International Conference on Mobile Business and 2010 Ninth Global Mobility Roundtable (ICMB-GMR)","volume":"115 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133623451","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-06-13DOI: 10.1109/ICMB-GMR.2010.20
A. Gasimov, Chuan-Hoo Tan, C. Phang, J. Sutanto
The recent development in mobile technologies has increased the demand for sophisticated software applications for mobile devices. This technological-driven market evolution poses new opportunities and challenges for developers to create applications which will fully exploit mobile’s new and expanding capabilities. In this article, we investigate the mobile application development by providing possible answers to three questions: what available applications exist in the market, how they are developed, and which are their potential future directions. Through addressing these questions, the main purpose is to highlight any important aspects of mobile application development which should be considered by developers and investors in unleashing the great potential of mobile technologies.
{"title":"Visiting Mobile Application Development: What, How and Where","authors":"A. Gasimov, Chuan-Hoo Tan, C. Phang, J. Sutanto","doi":"10.1109/ICMB-GMR.2010.20","DOIUrl":"https://doi.org/10.1109/ICMB-GMR.2010.20","url":null,"abstract":"The recent development in mobile technologies has increased the demand for sophisticated software applications for mobile devices. This technological-driven market evolution poses new opportunities and challenges for developers to create applications which will fully exploit mobile’s new and expanding capabilities. In this article, we investigate the mobile application development by providing possible answers to three questions: what available applications exist in the market, how they are developed, and which are their potential future directions. Through addressing these questions, the main purpose is to highlight any important aspects of mobile application development which should be considered by developers and investors in unleashing the great potential of mobile technologies.","PeriodicalId":138929,"journal":{"name":"2010 Ninth International Conference on Mobile Business and 2010 Ninth Global Mobility Roundtable (ICMB-GMR)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131439670","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-06-13DOI: 10.1109/ICMB-GMR.2010.14
T. Caus, Stefan Christmann, S. Hagenhoff
Nowadays, mobile phones are widespread. However, the development, distribution and installation of software on these end devices is a complex problem due to the very heterogeneous landscape of mobile end devices (especially with regard to software platforms, operational concepts and functionality), and the wide range of technical expertise on the side of the end user. Up to now, there are no empirical surveys on the deployment of software on mobile end devices that allow users to understand and assess not only practical usage situations but also further imaginable distribution instruments. Such a study was carried out on a mobile application which users installed on their own mobile phones via Bluetooth.
{"title":"Empirical Assessment on User Acceptance of Mobile Applications Deployment","authors":"T. Caus, Stefan Christmann, S. Hagenhoff","doi":"10.1109/ICMB-GMR.2010.14","DOIUrl":"https://doi.org/10.1109/ICMB-GMR.2010.14","url":null,"abstract":"Nowadays, mobile phones are widespread. However, the development, distribution and installation of software on these end devices is a complex problem due to the very heterogeneous landscape of mobile end devices (especially with regard to software platforms, operational concepts and functionality), and the wide range of technical expertise on the side of the end user. Up to now, there are no empirical surveys on the deployment of software on mobile end devices that allow users to understand and assess not only practical usage situations but also further imaginable distribution instruments. Such a study was carried out on a mobile application which users installed on their own mobile phones via Bluetooth.","PeriodicalId":138929,"journal":{"name":"2010 Ninth International Conference on Mobile Business and 2010 Ninth Global Mobility Roundtable (ICMB-GMR)","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125855815","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-06-13DOI: 10.1109/ICMB-GMR.2010.53
Xunhua Guo, Yannan Zhao, Yan Jin, N. Zhang
This paper proposes an integrated conceptual model for analyzing user adoption behaviors towards mobile marketing platforms from a two-sided market perspective. Both the consumer side and the merchant side are modeled based on extending classical theories with newly introduced factors reflecting cross network effects, and the two sides are integrated in the overall model which reveals the dynamic interaction between the evolutions of the two user groups through the platform. The model is expected to extend the current scope of IT/IS adoption research, as well as to generate valuable contributions to the two-sided market literature. The design of an empirical test for the proposed model is also presented and discussed.
{"title":"Two-Sided Adoption of Mobile Marketing Platforms: Towards an Integrated Conceptual Model","authors":"Xunhua Guo, Yannan Zhao, Yan Jin, N. Zhang","doi":"10.1109/ICMB-GMR.2010.53","DOIUrl":"https://doi.org/10.1109/ICMB-GMR.2010.53","url":null,"abstract":"This paper proposes an integrated conceptual model for analyzing user adoption behaviors towards mobile marketing platforms from a two-sided market perspective. Both the consumer side and the merchant side are modeled based on extending classical theories with newly introduced factors reflecting cross network effects, and the two sides are integrated in the overall model which reveals the dynamic interaction between the evolutions of the two user groups through the platform. The model is expected to extend the current scope of IT/IS adoption research, as well as to generate valuable contributions to the two-sided market literature. The design of an empirical test for the proposed model is also presented and discussed.","PeriodicalId":138929,"journal":{"name":"2010 Ninth International Conference on Mobile Business and 2010 Ninth Global Mobility Roundtable (ICMB-GMR)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130015782","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-06-13DOI: 10.1109/ICMB-GMR.2010.25
Kiriakos Patriarcheas, M. Xenos
Over recent years, the rapid development of mobile devices has made possible the support of educational applications in distance education to the extent that the term m-learning (mobile learning) has now been established as a relatively autonomous field with distinct features as to the means used compared to e-learning in general. This paper focuses on the for a of asynchronous distance education with the purpose of comparing educational techniques widely used in the fields (such as brainstorming and snowballing) in a combined environment both via computer and mobile devices, in the framework of a training program in IT basic skills for primary education teachers. For the purpose of this study, modeling in formal language was used to classify the messages in the forum, as well as a respective system to automate this procedure. As it is deduced from the data analysis and the study of the text messages in the Moodle forum (v.1.6), the groups using brainstorming technique show higher participation at the forum than those using the snowballing technique. Furthermore, brainstorming technique is more advantageous than Snowballing technique concerning the educational effectiveness.
{"title":"Educational Techniques Comparative Study by Using Combined Environment via Computer and Mobile Devices in Asynchronous Discussion Forum","authors":"Kiriakos Patriarcheas, M. Xenos","doi":"10.1109/ICMB-GMR.2010.25","DOIUrl":"https://doi.org/10.1109/ICMB-GMR.2010.25","url":null,"abstract":"Over recent years, the rapid development of mobile devices has made possible the support of educational applications in distance education to the extent that the term m-learning (mobile learning) has now been established as a relatively autonomous field with distinct features as to the means used compared to e-learning in general. This paper focuses on the for a of asynchronous distance education with the purpose of comparing educational techniques widely used in the fields (such as brainstorming and snowballing) in a combined environment both via computer and mobile devices, in the framework of a training program in IT basic skills for primary education teachers. For the purpose of this study, modeling in formal language was used to classify the messages in the forum, as well as a respective system to automate this procedure. As it is deduced from the data analysis and the study of the text messages in the Moodle forum (v.1.6), the groups using brainstorming technique show higher participation at the forum than those using the snowballing technique. Furthermore, brainstorming technique is more advantageous than Snowballing technique concerning the educational effectiveness.","PeriodicalId":138929,"journal":{"name":"2010 Ninth International Conference on Mobile Business and 2010 Ninth Global Mobility Roundtable (ICMB-GMR)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131927116","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：