检索结果-内蒙古大学图书馆

arXiv 2021年

作者： Natale, Joseph L. Viswanath, Varun Acevedo, Oscar Trujillo Giottonini, Sophia Perez Hernández, Sandy Ihuiyan Romero Cruz Millán, Diana G. Montserrat Palacios-Puga, A. Mandvi, Ammar Khan, Brian M. Lilik, Martin Park, Jay Smarr, Benjamin L. Halicioǧlu Data Science Institute University of California La Jolla San DiegoCA90293 United States Department of Electrical and Computer Engineering University of California La Jolla San DiegoCA90293 United States Division de Ingeniera Bioqumica Instituto Tecnologico Superior of Atlixco C. Heliotropo No.1201 Unidad 8 Norte Nueva Xalpatlaco Atlixco74210 Mexico Colegio de Bachilleres del Estado de Sonora plantel Villa de Seris SON Hermosillo Mexico Instituto Tecnológico Superior de Atlixco C. Heliotropo No.1201 Unidad 8 Norte Nueva Xalpatlaco Atlixco Mexico Department of Health Sciences Universidad de Sonora campus Cajeme Cd. Obregon Son. Mexico Department of Biochemical and Chemical Engineering Instituto Tecnológico de Tijuana Tecnológico Nacional de Mexico B.C Tijuana Mexico Department of Emergency Medicine Department of Family Medicine University of California San DiegoCA United States Department of Emergency Medicine Department of Internal Medicine University of California San DiegoCA United States Department of Software Engineering Park Media Semarang Indonesia Department of Emergency Medicine University of California La Jolla San DiegoCA92037 United States Department of Bioengineering Halicioǧlu Data Science Institute University of California La Jolla San DiegoCA90293 United States

The SARS-CoV-2 pandemic has so far unfolded diversely across the fifty United States of America, reflected both in different time progressions of infection "waves" and in magnitudes of local infection rates. Despite a marked diversity of presentations, most U.S. states experienced their single greatest surge in daily new cases during the transition from Fall 2020 to Winter 2021. Popular media also cite additional similarities between states - often despite disparities in governmental policies, reported mask-wearing compliance rates, and vaccination percentages. Here, we identify a set of robust, low-dimensional clusters that 1) summarize the timings and relative heights of four historical COVID-19 "wave opportunities" accessible to all 50 U.S. states, 2) correlate with geographical and intervention patterns associated with those groups of states they encompass, and 3) predict aspects of the "fifth wave" of new infections in the late Summer of 2021. In particular, we argue that clustering elucidates a negative relationship between vaccination rates and subsequent case-load variabilities within state groups. We advance the hypothesis that vaccination acts as a "seat belt," in effect constraining the likely range of new-case upticks, even in the context of the Summer 2021, variant-driven surge. © 2021, CC BY.

关键词： Vaccines

来源：评论

学校读者我要写书评

暂无评论

Protein Shape Retrieval Contest

Protein Shape Retrieval Contest

引用

12th Eurographics Workshop on 3D Object Retrieval, 3DOR 2019, in conjunction with the 40th Annual Conference of the European Association for computer Graphics, EG 2019

作者： Langenfeld, Florent Axenopoulos, Apostolos Benhabiles, Halim Daras, Petros Giachetti, Andrea Han, Xusi Hammoudi, Karim Kihara, Daisuke Lai, Tuan M. Liu, Haiguang Melkemi, Mahmoud Mylonas, Stelios K. Terashi, Genki Wang, Yufan Windal, Feryal Montes, Matthieu Laboratoire GBCM EA7528 Conservatoire National des Arts-et-Métiers 2 rue Conté Paris75003 France Team Information Technologies Institute Centre for Research and Technology Hellas Greece ISEN-Lille Yncréa Hauts de France Department of Computer Science Università di Verona Strada le Grazie 15 Verona37134 Italy Department of Biological Sciences Purdue University West LafayetteIN United States Université Haute-Alsace IRIMAS EA 7499 MulhouseF-68100 France Department of Computer Science Purdue University West LafayetteIN United States Complex Systems Division Beijing Computational Science Research Center Beijing100193 China School of Software Engineering University of Science and Technology China Suzhou Jiangsu215123 China

ISBN: (纸本)9783038680772

This track aimed at retrieving protein evolutionary classification based on their surfaces meshes only. Given that proteins are dynamic, non-rigid objects and that evolution tends to conserve patterns related to their activity and function, this track offers a challenging issue using biologically relevant molecules. We evaluated the performance of 5 different algorithms and analyzed their ability, over a dataset of 5,298 objects, to retrieve various conformations of identical proteins and various conformations of ortholog proteins (proteins from different organisms and showing the same activity). All methods were able to retrieve a member of the same class as the query in at least 94% of the cases when considering the first match, but show more divergent when more matches were considered. Last, similarity metrics trained on databases dedicated to proteins improved the results. © 2019 The Author(s)

关键词： Proteins

来源：评论

学校读者我要写书评

暂无评论

Involving external stakeholders in project courses

arXiv

引用

arXiv 2018年

作者： Steghöfer, Jan-Philipp Burden, Hakan Hebig, Regina Calikli, Gul Feldt, Robert Hammouda, Imed Horkoff, Jennifer Knauss, Eric Liebel, Grischa University of Gothenburg Sweden RISE Viktoria Sweden University of Gothenburg Sweden University of Gothenburg Sweden Mediterranean Institute of Technology South Mediterranean University Tunisia Software Engineering Division Department of Computer Science and Engineering Chalmers | University of Gothenburg Sweden

Problem: The involvement of external stakeholders in capstone projects and project courses is desirable due to its potential positive effects on the students. Capstone projects particularly profit from the inclusion of an industrial partner to make the project relevant and help students acquire professional skills. In addition, an increasing push towards education that is aligned with industry and incorporates industrial partners can be observed. However, the involvement of external stakeholders in teaching moments can create friction and could, in the worst case, lead to frustration of all involved parties. Contribution: We developed a model that allows analysing the involvement of external stakeholders in university courses both in a retrospective fashion, to gain insights from past course instances, and in a constructive fashion, to plan the involvement of external stakeholders. Key Concepts: The conceptual model and the accompanying guideline guide the teachers in their analysis of stakeholder involvement. The model is comprised of several activities (define, execute, and evaluate the collaboration). The guideline provides questions that the teachers should answer for each of these activities. In the constructive use, the model allows teachers to define an action plan based on an analysis of potential stakeholders and the pedagogical objectives. In the retrospective use, the model allows teachers to identify issues that appeared during the project and their underlying causes. Drawing from ideas of the reflective practitioner, the model contains an emphasis on reflection and interpretation of the observations made by the teacher and other groups involved in the courses. Key Lessons: Applying the model retrospectively to a total of eight courses shows that it is possible to reveal hitherto implicit risks and assumptions and to gain a better insight into the interaction between external stakeholders and students. Our empirical data reveals seven recurring risk them

关键词： Students

来源：评论

学校读者我要写书评

暂无评论

Toward Complete Transformation of Sodium Polysulfides by Regulating the Second-Shell Coordinating Environment of Atomically Dispersed Fe

引用

Angewandte Chemie 2023年第26期135卷

作者： Ruilin Bai Qiaosong Lin Xinyu Li Fangxin Ling Huijuan Wang Sha Tan Lingxiang Hu Mingze Ma Prof. Xiaojun Wu Yu Shao Xianhong Rui Prof. Enyuan Hu Dr. Yu Yao Prof. Yan Yu Hefei National Research Center for Physical Sciences at the Microscale Department of Materials Science and Engineering CAS Key Laboratory of Materials for Energy Conversion University of Science and Technology of China Hefei Anhui 230026 China Contribution: Conceptualization (lead) Writing - original draft (lead) State Key Laboratory of Molecular Reaction Dynamics Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 Liaoning China University of Chinese Academy of Sciences Beijing 100049 China Contribution: Data curation (lead) Contribution: Formal analysis (equal) Contribution: Investigation (lead) Experimental Center of Engineering and Material Science University of Science and Technology of China Hefei 230026 China Contribution: Methodology (equal) Chemistry Division Brookhaven National Laboratory Upton NY USA Contribution: Resources (equal) Department of Electrical Engineering and Computer Science Institut Polytechnique de Paris 91120 Palaiseau Île-de-France France Contribution: Software (equal) Contribution: Data curation (equal) Jiujiang DeFu Technology Co. Ltd. Jiujiang Jiangxi 332000 (P. R. China School of Materials and Energy Guangdong University of Technology Guangzhou 510006 China Contribution: Validation (lead) Contribution: Methodology (lead) Contribution: Writing - review & editing (lead) National Synchrotron Radiation Laboratory Hefei Anhui 230026 China Contribution: Project administration (lead) Writing - review & editing (lead)

Room temperature sodium-sulfur (RT Na-S) batteries are highly competitive as potential energy storage devices. Nevertheless, their actually achieved reversible capacities are far below the theoretical value due to incomplete transformation of polysulfides. Herein, atomically dispersed Fe-N/S active center by regulating the second-shell coordinating environment of Fe single atom is proposed. The Fe−N 4 S 2 coordination structure with enhanced local electronic concentration around the Fermi level is revealed via synchrotron radiation X-ray absorption spectroscopy (XAS) and theoretical calculations, which can not only significantly promote the transformation kinetics of polysulfides, but induce uniform Na deposition for dendrite-free Na anode. As a result, the obtained S cathode delivers a high initial reversible capacity of 1590 mAh g −1 , nearly the theoretical value. This work opens up a new avenue to facilitate the complete transformation of polysulfides for RT Na-S batteries.

关键词： Catalysis Coordinating Environment Fe Single Atom RT Na-S Batteries Transformation Kinetics

来源：评论

学校读者我要写书评

暂无评论

Possibilities about the design Lean canvas model and its adaptation in the agile testing

Possibilities about the design Lean canvas model and its ada...

引用

2017 Symposium for Young Scientists in Technology, engineering and Mathematics, SYSTEM 2017

作者： Nidagundi, Padmaraj Novickis, Leonids Faculty of Computer Science and Information Technology Institute of Applied Computer Systems Riga Technical University Riga Latvia Head of the Division of Software Engineering Faculty of Computer Science and Information Technology Riga Technical University Riga Latvia

software development industry is inventing new development methodologies in last 10 years for improving the existing developing tools, process and delivering a high-quality software to end customer in short time. In recent year's waterfall development becomes less attractive in the software industry and shifted its attention towards the new software development methodologies such as agile. Agile brought the new dimension to software development and improved the development, testing process and added new challenges. There are different agile development methodologies in practice such as Scrum, FDD, Kanban, DSDM, XP, ASD, Lean, and Crystal, all these have different approaches in software development but share the same principle of the agile. Nowadays software development process adopted a new number of software tools in the overall process of development and software testing also moved towards the more automation to deploy, validate and verify the software code as early possible. In recent years, lean canvas is used for the planning and validating the business model and this paper will bring more focus on the lean canvas model design adaptation in agile software test strategy building, test planning and guiding the test team to work fast. Copyright © 2017 held by the authors.

关键词： software testing

来源：评论

学校读者我要写书评

暂无评论

MedShapeNet - A Large-Scale Dataset of 3D Medical Shapes for computer Vision

arXiv

引用

arXiv 2023年

作者： Li, Jianning Zhou, Zongwei Yang, Jiancheng Pepe, Antonio Gsaxner, Christina Luijten, Gijs Qu, Chongyu Zhang, Tiezheng Chen, Xiaoxi Li, Wenxuan Wodzinski, Marek Friedrich, Paul Xie, Kangxian Jin, Yuan Ambigapathy, Narmada Nasca, Enrico Solak, Naida Melito, Gian Marco Vu, Viet Duc Memon, Afaque R. Schlachta, Christopher De Ribaupierre, Sandrine Patel, Rajnikant Eagleson, Roy Chen, Xiaojun Mächler, Heinrich Kirschke, Jan Stefan de la Rosa, Ezequiel Christ, Patrick Ferdinand Li, Hongwei Bran Ellis, David G. Aizenberg, Michele R. Gatidis, Sergios Küstner, Thomas Shusharina, Nadya Heller, Nicholas Andrearczyk, Vincent Depeursinge, Adrien Hatt, Mathieu Sekuboyina, Anjany Löffler, Maximilian Liebl, Hans Dorent, Reuben Vercauteren, Tom Shapey, Jonathan Kujawa, Aaron Cornelissen, Stefan Langenhuizen, Patrick Ben-Hamadou, Achraf Rekik, Ahmed Pujades, Sergi Boyer, Edmond Bolelli, Federico Grana, Costantino Lumetti, Luca Salehi, Hamidreza Ma, Jun Zhang, Yao Gharleghi, Ramtin Beier, Susann Sowmya, Arcot Garza-Villarreal, Eduardo A. Balducci, Thania Angeles-Valdez, Diego Souza, Roberto Rittner, Leticia Frayne, Richard Ji, Yuanfeng Ferrari, Vincenzo Chatterjee, Soumick Dubost, Florian Schreiber, Stefanie Mattern, Hendrik Speck, Oliver Haehn, Daniel John, Christoph Nürnberger, Andreas Pedrosa, João Ferreira, Carlos Aresta, Guilherme Cunha, António Campilho, Aurélio Suter, Yannick Garcia, Jose Lalande, Alain Vandenbossche, Vicky Van Oevelen, Aline Duquesne, Kate Mekhzoum, Hamza Vandemeulebroucke, Jef Audenaert, Emmanuel Krebs, Claudia van Leeuwen, Timo Vereecke, Evie Heidemeyer, Hauke Röhrig, Rainer Hölzle, Frank Badeli, Vahid Krieger, Kathrin Gunzer, Matthias Chen, Jianxu van Meegdenburg, Timo Dada, Amin Balzer, Miriam Fragemann, Jana Jonske, Frederic Rempe, Moritz Malorodov, Stanislav Bahnsen, Fin H. Seibold, Constantin Jaus, Alexander Marinov, Zdravko Jaeger, Paul F. Stiefelhagen, Rainer Santos, Ana Sofia Lindo, Mariana Ferreira, André Alves, Victor Kamp, Michael Abourayya, Amr Nensa, Felix Hörst, Fabian Brehmer, Alexander Hein Girardetstraße 2 Essen45131 Germany Graz University of Technology Inffeldgasse 16c Graz8010 Austria Graz Austria The Department of Computer Science Johns Hopkins University Malone Hall 3400 N Charles St BaltimoreMD21218 United States Rte Cantonale Lausanne1015 Switzerland The Department of Measurement and Electronics AGH University of Science and Technology Krakow Poland Sierre Switzerland Department of Biomedical Engineering University of Basel Hegenheimermattweg Allschwil167C CH-4123 Switzerland The Boston College 140 Commonwealth Ave Chestnut HillMA02467 United States University Hospital B7-200 339 Windermere Road LondonN6A 5A5 Canada The Department of Radiology Renji Hospital School of Medicine Shanghai Jiao Tong University Shanghai200240 China The Research Center for Connected Healthcare Big Data ZhejiangLab Zhejiang Hangzhou311121 China The Faculty of Statistics Technical University Dortmund August-Schmidt-Straße 1 Dortmund44227 Germany The Institute of Mechanics Graz University of Technology Kopernikusgasse 24/IV Graz8010 Austria The Institute of Biomedical Manufacturing and Life Quality Engineering State Key Laboratory of Mechanical System and Vibration School of Mechanical Engineering Shanghai Jiao Tong University 800 Dongchuan Road Shanghai200240 China The Department of Cardiac Surgery Medical University Graz Auenbruggerplatz 29 Graz8036 Austria The Department of Diagnostic and Interventional Radiology University Hospital Giessen Justus-Liebig-University Giessen Klinikstraße 33 Giessen35392 Germany The Department of Mechanical Engineering Mehran University of Engineering and Technology Jamshoro Sindh76062 Pakistan The Institute of Medical Robotics Shanghai Jiao Tong University Shanghai China The Geschäftsführender Oberarzt Abteilung für Interventionelle und Diagnostische Neuroradiologie Universitätsklinikum der Technischen Universität München Ismaningerstr. 22 München81675 Germany icometrix Kolonel Be

Prior to the deep learning era, shape was commonly used to describe the objects. Nowadays, state-of-the-art (SOTA) algorithms in medical imaging are predominantly diverging from computer vision, where voxel grids, meshes, point clouds, and implicit surface models are used. This is seen from numerous shape-related publications in premier vision conferences as well as the growing popularity of ShapeNet (about 51,300 models) and Princeton ModelNet (127,915 models). For the medical domain, we present a large collection of anatomical shapes (e.g., bones, organs, vessels) and 3D models of surgical instrument, called MedShapeNet, created to facilitate the translation of data-driven vision algorithms to medical applications and to adapt SOTA vision algorithms to medical problems. As a unique feature, we directly model the majority of shapes on the imaging data of real patients. As of today, MedShapeNet includes 23 datasets with more than 100,000 shapes that are paired with annotations (ground truth). Our data is freely accessible via a web interface and a Python application programming interface (API) and can be used for discriminative, reconstructive, and variational benchmarks as well as various applications in virtual, augmented, or mixed reality, and 3D printing. Exemplary, we present use cases in the fields of classification of brain tumors, skull reconstructions, multi-class anatomy completion, education, and 3D printing. In future, we will extend the data and improve the interfaces. The project pages are: https://***/ and https://***/Jianningli/*** Codes 68T01 © 2023, CC BY.

关键词： Large dataset

来源：评论

学校读者我要写书评

暂无评论

Effective capacity for renewal service processes with applications to HARQ systems

arXiv

引用

arXiv 2018年

作者： Shi, Zheng Tsiftsis, Theodoros Tan, Weiqiang Yang, Guanghua Ma, Shaodan Alouini, Mohamed-Slim School of Electrical and Information Engineering Jinan University Zhuhai519070 China School of Computer Science and Educational Software Guangzhou University Guangzhou510006 China Department of Electrical and Computer Engineering University of Macau Macao China CEMSE Division King Abdullah University of Science and Technology Thuwal23955-6900 Saudi Arabia

Considering the widespread use of effective capacity in cross-layer design and the extensive existence of renewal service processes in communication networks, this paper thoroughly investigates the effective capacity for renewal processes. Based on Z-transform, we derive exact analytical expressions for the effective capacity at a given quality of service (QoS) exponent for both the renewal processes with constant reward and with variable rewards. Unlike prior literature that the effective capacity is approximated with no many insightful discussions, our expression is simple and reveals further meaningful results, such as the monotonicity and bounds of effective capacity. The analytical results are then applied to evaluate the cross-layer throughput for diverse hybrid automatic repeat request (HARQ) systems, including fixed-rate HARQ (FR-HARQ, e.g., Type I HARQ, HARQ with chase combining (HARQ-CC) and HARQ with incremental redundancy (HARQ-IR)), variable-rate HARQ (VR-HARQ) and cross-packet HARQ (XP-HARQ). Numerical results corroborate the analytical ones and prove the superiority of our proposed approach. Furthermore, targeting at maximizing the effective capacity via the optimal rate selection, it is revealed that VR-HARQ and XP-HARQ attain almost the same performance, and both of them perform better than FR-HARQ. Copyright © 2018, The Authors. All rights reserved.

关键词： Quality of service

来源：评论

学校读者我要写书评

暂无评论

Tool Support for Restricted Use Case Specification: Findings from a Controlled Experiment

Tool Support for Restricted Use Case Specification: Findings...

引用

Asia-Pacific Conference on software engineering

作者： Markus Weninger Paul Grünbacher Huihui Zhang Tao Yue Shaukat Ali Christian Doppler Laboratory MEVSS Institute for System Software Johannes Kepler University Linz Austria Christian Doppler Laboratory MEVSS Institute for Software Systems Engineering Johannes Kepler University Linz Austria School of Computer Engineering Weifang University China Simula Research Laboratory Norway Information Systems Architecture Science Research Division National Institute of Informatics Tokyo Japan

ISBN: (纸本)9781728119717;9781728119700

Evidence has shown that the use of restricted natural languages can reduce ambiguities in textual use case specifications (UCSs). Restricted natural languages often come with specific editors that support particular use case templates and provide enforcement of the language's restrictions. However, whether restriction enforcement facilitates the definition of UCSs as compared to an editor without such support is a fundamental question to answer. To this end, we report results of a controlled experiment in which we compared two approaches for defining restricted UCSs: (i) a specific Restricted Use Case Modeling (RUCM) tool that supports restriction enforcement; and (ii) a general Office Word UCS template without such enforcement. We compared both approaches from multiple perspectives including restriction misuse, understandability, and restrictiveness. Results show that the restriction misuse rates are generally low, which indicates the usefulness of the RUCM, independent of the use of the editors. The results also indicate that the RUCM tool eases the application of more complex restrictions. We also found that the participants profited from extensive training prior to the experiment. The experiment participants further showed their strong willingness to recommend the RUCM tool to others and to use it in the future, which was not the case for the Office Word template.

关键词： Tools Unified modeling language Task analysis Analytical models software engineering Training Natural languages

来源：评论

学校读者我要写书评

暂无评论

Retraction notice to “Improvement Mechanism of resistance random access memory with supercritical CO 2 fluid treatment” [J. Supercrit. Fluids, Volume 85, January 2014, Pages 183–189]

引用

The Journal of Supercritical Fluids 2021年 178卷

作者： Kuan-Chang Chang Jung-Hui Chen Tsung-Ming Tsai Ting-Chang Chang Syuan-Yong Huang Rui Zhang Kai-Huang Chen Yong-En Syu Geng-Wei Chang Tian-Jian Chu Guan-Ru Liu Yu-Ting Su Min-Chen Chen Jhih-Hong Pan Kuo-Hsiao Liao Ya-Hsiang Tai Tai-Fa Young Simon M. Sze Jen-Wei Huang Department of Materials and Optoelectronic Science National Sun Yat-Sen University 70 Lien-hai Road Kaohsiung 804 Taiwan Department of Chemistry National Kaohsiung Normal University Kaohsiung Taiwan Department of Physics National Sun Yat-Sen University 70 Lien-hai Road Kaohsiung 804 Taiwan School of Software and Microelectronics Peking University Beijing 100871 People's Republic of China Department of Electronics Engineering and Computer Science Tung-Fang Design Institute Kaohsiung Taiwan Department of Photonics and the Institute of Electro-Optical Engineering National Chiao Tung University Hsinchu 300 Taiwan Department of Mechanical and Electro-Mechanical Engineering Kaohsiung 804 Taiwan Department of Electronics Engineering and Institute of Electronics National Chiao Tung University Hsinchu 300 Taiwan Advanced Optoelectronics Technology Center National Cheng Kung University Taiwan Physics Division Institute of Nuclear Energy Research Taoyuan Taiwan Department of Physics ROC Military Academy Kaohsiung 83055 Taiwan

来源：评论

学校读者我要写书评

暂无评论

New extension constructions of optimal frequency hopping sequence sets

arXiv

引用

arXiv 2018年

作者： Niu, Xianhua Xing, Chaoping National Key Laboratory of Science and Technology on Communications School of Computer and Software Engineering Xihua University University of Electronic Science and Technology of China Chengdu China Division of Mathematical Sciences School of Physical and Mathematical Sciences Nanyang Technological University Singapore. Singapore

In this paper, a general framework of constructing optimal frequency hopping sequence (FHS) sets is presented based on the designated direct product. Under the framework, we obtain infinitely many new optimal FHS sets by combining a family of sequences that are newly constructed in this paper with some known optimal FHS sets. Our constructions of optimal FHS sets are also based on extension method. However, our constructions remove the constraint requiring that the extension factor is co-prime with the length of original FHSs and get new parameters. In literature, most of the extension constructions suffer from this constraint. As a result, our constructions allow a great flexibility of choosing parameters of FHS sets for a given frequency-hopping spread spectrum system. Copyright © 2018, The Authors. All rights reserved.

关键词： Frequency hopping

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：