Policy simulation

  • 文章类型: Journal Article
    由于实施了早期发现机制,哈萨克斯坦目睹了自闭症谱系障碍病例的数量显着增加。然而,尽管做出了这些努力,为自闭症谱系障碍患者获得优质服务和有效干预措施仍然具有挑战性.虽然政府实施了各种政策来解决自闭症谱系障碍对劳动力市场的影响,特别是对于残疾人来说,这些政策的有效性需要评估。因此,本文旨在通过计算自闭症谱系障碍儿童父母的非工作成本来估计生产力损失。为了实现这一目标,我们将来自官方来源的数据与来自我们自己调查的数据相结合,以使用人力资本模型来估计生产率的损失。此外,我们进行政策模拟,以评估在哈萨克斯坦实施的现行政策的影响,该政策承认在有偿劳动力市场上照顾自闭症谱系障碍和残疾儿童的时间。我们的结果表明,生产率损失是巨大的,自闭症谱系障碍儿童的母亲尤其受到影响。此外,根据政策模拟的结果,显然,仅针对自闭症谱系障碍和残疾儿童的父母的政策不足以解决劳动力市场的差距和随之而来的生产力损失。为了有效减轻自闭症谱系障碍对劳动力市场的影响,需要一个更全面的方法。这种方法应包括更广泛的干预措施和支持机制,包括那些没有残疾的人和自闭症谱系障碍儿童的父母。
    UNASSIGNED: Kazakhstan has witnessed a significant increase in the number of Autism Spectrum Disorder cases due to the implementation of mechanisms for early detection. However, despite these efforts, accessing quality services and effective interventions for individuals with Autism Spectrum Disorder remains challenging. While the government has implemented various policies to address the impact of Autism Spectrum Disorder on the labour market, especially for those with disabilities, the effectiveness of these policies needs to be evaluated. Therefore, this article aims to estimate the loss of productivity by calculating the cost of non-working for parents of children with Autism Spectrum Disorder. To achieve this goal, we combine data from official sources with data from our own survey to estimate the loss of productivity using human capital models. In addition, we conduct policy simulations to assess the impact of the existing policy implemented in Kazakhstan that recognises the time of caring for children with Autism Spectrum Disorder and disability as working in the paid labour market. Our results reveal that the productivity loss is substantial, with mothers of children with Autism Spectrum Disorder being particularly affected. Furthermore, based on the outcomes of the policy simulations, it becomes evident that policies solely targeting parents of children with Autism Spectrum Disorder and disability are insufficient to address the labour market gaps and the consequent loss of productivity. To effectively mitigate the impact of Autism Spectrum Disorder in the labour market, a more comprehensive approach is needed. This approach should encompass a broader range of interventions and support mechanisms, including those for individuals without disabilities and parents of children with Autism Spectrum Disorder.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

    求助全文

  • 文章类型: Journal Article
    社会经济和环境研究中的情景和政策评估在社会生态系统(SES)中面临重大挑战。有有限数量的研究着眼于综合方法中不同情景的影响,许多人使用了一种静态的方法,只有一个变化的驱动力。在使用系统动力学模拟模型实施和分析与土地覆盖和土地利用变化有关的情景和政策时,本工作分析了哥伦比亚安第斯山脉战略盆地的SES动力学。该模型包括自然,生态系统服务,社会文化,和经济成分。分别和共同分析方案和政策选择,以确定不同SES组成部分之间的协同作用或权衡效果。结果表明,根据所研究的案例,社会生态系统的轨迹不同,及其对分析成分中不同变量的影响。还发现了一些违反直觉的影响,例如内在动机在决策过程中的重要性,以及土地管理和政策设计的决定因素。
    Scenario and policy assessments in socioeconomic and environmental studies face significant challenges in socio-ecological systems (SES). There are a limited number of studies that have looked at the impact of different scenarios within integrated approaches, and many have used a static approach with a single driver of change. The present work analyzes the SES dynamics for a strategic basin in the Colombian Andes when implementing and analyzing scenarios and policies related to land cover and land use change using a system dynamics simulation model. The model includes natural, ecosystem services, sociocultural, and economic components. Scenarios and policy options are analyzed both individually and jointly to identify synergies or trade-off effects between the different SES components. The results showed the different trajectories of the socio-ecological system according to the cases studied, and its impact on different variables in the analyzed components. Some counterintuitive effects were also identified, such as the importance of intrinsic motivations in decision-making processes, and determinants in land management and policy design.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

    求助全文

  • 文章类型: Journal Article
    随着碳排放的不断增加和气候问题的日益严峻,各国纷纷采取措施减少碳排放。然而,二氧化碳在大气中不断流动,容易受到周边城市政策的影响。因此,如何解决碳排放溢出效应问题成为提高政策效率的关键。跨区域碳治理为通过规范和引导跨区域治理主体的合作行为解决碳排放问题提供了视角。以成渝地区为例,本研究利用SDM分析了排放的影响因素和空间溢出效应。然后利用系统动力学方法构建了双核碳排放系统,并模拟了不同政策方案下成渝减排政策的溢出效应和减排潜力。结果表明,人口和企业的流动性对碳排放预测有显著影响。碳减排政策表现出“碳转移”和“搭便车”现象。“当成都降低经济增长率时,导致高耗能企业向重庆转移,重庆市碳排放增加。重庆市全面减碳政策的实施对成都市具有积极作用。减排政策表现出与其时间效力相关的问题,因为成都产业结构政策的影响在短期和长期会产生相反的结果。每个城市的独特环境都需要量身定制的碳减排政策。为了减少碳排放,成都和重庆需要相反的人口政策。
    As carbon emission continue to rise and climate issues grow increasingly severe, countries worldwide have taken measures to reduce carbon emission. However, carbon dioxide is continuously flowing in the atmosphere and is easily influenced by neighboring cities\' policies. Therefore, how to solve the problem of carbon emission spillover effect has become the key to improve policy efficiency. Cross-regional carbon governance provides a perspective on solving the carbon emission problem by regulating and guiding the cooperative behavior of cross-regional governance actors. Taking Chengdu-Chongqing area as an example, this study used the SDM to analyze the influencing factors and spatial spillover effects of emission. Then we used the system dynamics method to construct a dual-core carbon emission system, and simulated the spillover effect and emission reduction potential of Chengdu and Chongqing emission reduction policies under different policy schemes. The results reveal that the mobility of population and enterprises have a significant impact on carbon emission prediction. Carbon reduction policies exhibit the phenomena of \"carbon transfer\" and \"free-riding.\" When Chengdu lowers its economic growth rate, it leads to the transfer of high energy-consuming enterprises to Chongqing, increasing carbon emission in Chongqing. The implementation of comprehensive carbon reduction policies in Chongqing has a positive effect on Chengdu. Emission reduction policies exhibit issues related to their temporal efficacy, as the effects of industrial structural policies in Chengdu yield opposite outcomes in the short and long term. Each city\'s unique circumstances necessitate tailored carbon reduction policies. In order to reduce carbon emissions, Chengdu and Chongqing require opposite population policies.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

    求助全文

  • 文章类型: Journal Article
    燃煤发电是中国碳排放的最大贡献者之一。为了促进国家低碳转型的雄心,中国政府在第十四个五年计划(2021-2025年)期间发布了一系列减少燃煤电厂(CFPP)排放的政策。本研究主要关注相关国家政策的缓解潜力,在不同的国家新能源发展计划观点下,对不同的政策实施程度和供电安全采用双重约束的全局优化方法。因此,设置了81个场景,并进行到2025年的政策模拟,在各种情况下实现从0.39Gt到1.04Gt的减排。具体来说,如果所有政策都按计划实施,它们可以带来重大的变化,0.64GtCO2累积减少和25Mt/GWh排放效率提高。但模拟的排放变化趋势表明,它们可能不足以实现国家在2030年之前达到峰值排放的目标,而更高范围的情景表明,这一目标需要更强有力的实施。还为中国CFPPs的后续可持续性政策提供了更多相关建议。
    Coal-fired power is one of the largest contributors to China\'s carbon emissions. To promote its national low-carbon transition ambitions, the Chinese government has issued a series of policies to reduce emissions from coal-fired power plants (CFPP) during its 14th Five-Year Plan (2021-2025). This study mainly focuses on the mitigation potential of related national policies, using global optimization methods with double constraints on different policy implementation extents and power supply security under different scheduled views of national new energy developments. Thereby, 81 scenarios are set, and policy simulations till 2025 are conducted, achieving emission reductions ranging from 0.39 Gt to 1.04 Gt across scenarios. Specifically, if all policies are implemented as planned, they can bring significant changes, 0.64 Gt CO2 cumulative reduction and 25 Mt/GWh emitting efficiency improvement. But the simulated emission-changing trend shows that they may not be sufficient for the nation\'s target of peaking emissions before 2030, while results in higher-extent scenarios indicate that stronger implementation is required for this target. More relevant recommendations are also provided for subsequent sustainability policies on CFPPs in China.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Pubmed)

  • 文章类型: Journal Article
    水资源短缺和水污染是突出而紧迫的资源环境问题。工业用水量和污水排放量占我国污水排放总量的比重较大。因此,科学调节工业企业的用水和污水排放,可以有效缓解水资源短缺和污染问题。通过建立多智能体模型,本研究模拟了工业企业的用水行为,探索工业企业对不同类型的水管理方案的反应,以协调经济和环境效益。目的是在实现经济效益的同时,减少工业企业的用水量和污染物排放,从而为水务部门提供政策参考。结果表明:1)三项水价政策,水资源税和减排补贴能有效调节企业用水和污水排放。2)水价和水资源税率需要控制在合理范围内。适当的水价和水资源税率可以鼓励企业增加研发投入。在此基础上,建议强调政府和企业的双向影响,继续实施水资源税等水资源管理政策,从而促进生态与经济之间的平衡。
    Water resource shortage and water pollution are prominent and urgent resource and environment problems. Industrial water consumption and sewage discharges account for a large proportion of the total sewage discharge of China. Therefore, scientifically regulating the water consumption and sewage discharge of industrial enterprises can effectively alleviate water scarcity and pollution problems. By establishing a multi-agent model, this study simulates the water use behavior of industrial enterprises, exploring the responses of industrial enterprises to a different type of scenarios for water management that can coordinate economic and environmental benefits. The purpose is to reduce the water consumption and pollutant emissions of industrial enterprises while achieving economic benefits, so as to provide policy references for water authorities. The results show that: 1) The three policies of water price, water resource tax and emission reduction subsidy can effectively regulate the water consumption and sewage discharge of enterprises. 2) Water price and water resource tax rate need to be controlled within a reasonable range. Appropriate water price and water resource tax rate can encourage enterprises to increase R&D investment. On this basis, it is suggested to emphasize the two-way influence of the government and enterprises, continue to implement water resources management policies such as water resources tax, so as to promote the balance between ecology and economy.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

    求助全文

  • 文章类型: Journal Article
    全球气候持续变暖;通过减少碳排放(CE)来应对气候变暖已成为全球共识。CE的影响因素表现出多样化和空间特征,CE体系的复杂性对绿色低碳发展和中国双碳目标的实现提出了挑战。以珠江三角洲城市群为例,本研究借助多尺度地理加权回归(MGWR)方法,探讨了CE的影响因素并设计了减排方案。基于此,利用系统动力学模型构建了考虑多维驱动因素的CE系统框架,从而将复杂的CE系统与考虑空间异质性的减排对策相结合,并实现了CE减排政策的动态仿真。结果表明,到2025年,城市群整体将达到碳峰值。深圳,珠海,和东莞在2020年之前实现了碳峰值,而其他城市将在2025-2030年达到碳峰值。政府的政策约束可以有效遏制CE,但是如果政府的限制放松了,CE将上升,个别城市不会达到碳峰值。综合CE削减政策优于单一CE削减政策。研究发现,该模型框架对城市群的碳减排策略进行了系统分析,为决策者提供经济发展和绿色低碳目标的各种组合。这将进一步促进多方位缓解城市群高排放,促进区域可持续发展。
    Global climate continues to warm; by reducing carbon emission (CE) to cope with climate warming has become a global consensus. The influencing factors of CE exhibit diversification and spatial characteristics, and the complexity of the CE system poses challenges to green and low-carbon development and the realization of China\'s dual-carbon goals. Taking the Pearl River Delta urban agglomeration as an example, this study explored the influencing factors of CE and designed emission reduction schemes with the help of multi-scale geographically weighted regression (MGWR). Based on this, the system dynamics model was used to construct a CE system framework considering multi-dimensional driving factors, so as to combine the complex CE system with the emission reduction countermeasures considering spatial heterogeneity, and realize the dynamic simulation of CE reduction policies. The results showed that the urban agglomeration as a whole will reach carbon peak by 2025. Shenzhen, Zhuhai, and Dongguan have achieved carbon peak before 2020, while other cities will reach carbon peak by 2025-2030. The government policy constraints can effectively curb CE, but if government constraints were relaxed, CE will rise and individual cities will not reach carbon peak. Comprehensive CE reduction policies are better than a single CE reduction policy. The study found that this model framework provides a systematic analysis of carbon reduction strategies for urban agglomerations, offering decision-makers various combinations of economic development and green low-carbon objectives. This will further contribute to a multi-faceted mitigation of high emission in urban agglomeration and promote regional sustainable development.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

    求助全文

  • 文章类型: Journal Article
    鉴于技术转让为促进国民经济发展提供了重要的推动力,技术转移政策(TTP)越来越受到学术界和工业界的关注。政府出台了许多政策。然而,TTP的实施效果仍有待明确。本研究是从“文本内容-影响路径-实施效果”的渐进层面进行的。\'\'旨在采用系统分析方法,分析政策工具和政策实施阶段,然后构建了TTP影响路径的概念框架。然后阐明了定性模型中变量之间的关系,并利用系统动力学(SD)模型建立了具有四个反馈回路的定量模型。最后,以辽宁为例,以中国为例,在VensimPLE中实现了系统仿真和主要参数的灵敏度分析。不同的政策工具在TTP影响研究阶段具有不同的作用,转让,和工业化。基于2013-1019年的数据,本文构建的SD模型可用于预测2020-2015年TTP的实施效果。仿真和敏感性分析结果为政府部门提高现有TTP的实施效果提供了实践启示。本研究也为其他研究者通过“文本内容-影响路径-实施效果”传导链提高TTP的实施效果提供了系统的理解,为TTP的进一步研究提供了新的见解。
    Given that technology transfer provides an important boost for promoting national economic development, technology transfer policy (TTP) has attracted more and more attention from academia and industry. The government issued many policies. However, the implementation effect of TTP still needs to be clarified. This study is carried out from the progressive level of \"text content-influence path-implementation effect.\'\' It aims to adopt a systematic analysis method to analyze policy tools and policy implementation stages, then builds a conceptual framework of the influence path of TTP. Then the relationship between variables in the qualitative model was clarified, and the system dynamics (SD) model was used to build a quantitative model with four feedback loops. Finally, taking Liaoning, China as an example, the system simulation and sensitivity analysis of the main parameters are implemented in Vensim PLE. Different policy tools have different roles in the TTP impact stages of research, transfer, and industrialization. Based on the data of 2013-1019, the SD model constructed in this paper can be used to predict the implementation effect of TTP during 2020-2015. Simulation and sensitivity analysis results provide practical enlightenment for government departments to improve the implementation effect of the existing TTP. This study also provides other researchers with a systematic understanding for improving the implementation effect of TTP with a \"text content-influence path-implementation effect\" conduction chain and provides new insights for further research on TTP.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Pubmed)

  • 文章类型: Journal Article
    背景:Pompe病(PD)的经济负担研究不足。本研究旨在填补这一空白,并基于政策模拟为政策改进提供循证建议。
    方法:数据来自2018年初一项全国罕见疾病横断面调查。来自92例PD患者的答案用于数据分析和模拟。采用灾难性健康支出(CHE)和因疾病造成的贫困(IDI)来衡量PD患者的经济负担。两种典型的报销模式,基于剂量的模型和基于成本的模型,在中国是模拟的。
    结果:研究了24名儿童和68名成人PD患者。儿童PD患者的家庭平均年收入低于成人PD患者的家庭(37890元与人民币66元120元)。与成人患者相比,儿科患者的直接医疗费用和自付费用几乎翻了一番(120050元vs.人民币66350元;人民币112710元vs.分别为57940元人民币)。患者的直接非医疗费用几乎是成年患者费用的6倍(73790元vs.分别为13080元人民币)。约88.24%的儿童PD患者家庭和67.21%的成人PD患者家庭患有CHE。约84.21%的儿童PD患者家庭和45.90%的成年PD患者家庭因疾病而被迫生活在贫困中。仿真结果表明,尽管目前的两个报销计划有助于减少CHE,它们对降低IDI几乎没有影响;基于剂量的模型对政策参数的变化更敏感.
    结论:我们的研究强调了PD患者面临的惊人的高疾病负担,并有第一手的患者报告的证据。我们的一系列模拟可以为中国和其他国家改善PD的报销政策提供很好的参考。
    The economic burden of Pompe disease (PD) is under-researched. This study aimed to fill this gap and provide evidence-based suggestions for policy improvement based on policy simulation.
    Data were derived from a nationally based cross-sectional survey on rare diseases in early 2018. Answers from 92 PD patients were used for data analysis and simulation. Catastrophic health expenditure (CHE) and impoverishment due to illness (IDI) were adopted to measure PD patients\' economic burden. Two typical reimbursement patterns, a dosage-based model and a cost-based model, in China were simulated.
    Twenty-four pediatric and 68 adult PD patients were investigated. Families with pediatric PD patients on average had lower annual household incomes than families with adult PD patients (RMB 37 890 vs. RMB 66 120). The direct medical expense and out-of-pocket expenses were almost double for pediatric patients compared with adult patients (RMB 120 050 vs. RMB 66 350; RMB 112 710 vs. RMB 57 940, respectively). The direct non-medical expense for patients was almost six times the expense of adult patients (RMB 73 790 vs. RMB 13 080, respectively). About 88.24% of families with pediatric PD patients and 67.21% of families with adult PD patients suffered from CHE. Around 84.21% of families with pediatric PD patients and 45.90% of families with adult PD patients were forced to live in poverty due to illness. The simulation indicated that, although the two current reimbursement schemes helped reduce CHE, they almost had no effect on reducing IDI; the dosage-based model was more sensitive to changes in policy parameters.
    Our study highlighted the alarmingly high disease burden faced by PD patients with first-hand patient-reported evidence. Our series of simulations could be a good reference for China and other countries to improve their reimbursement policy regarding PD.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Pubmed)

  • 文章类型: Journal Article
    汽车尾气污染已成为大气污染物和CO2排放的重要来源,随着车辆数量的不断增长。针对日益严重的汽车尾气污染和CO2排放问题,利用系统动力学建立了车辆减污减碳管理模型。以北京为案例研究城市,设计了不同的减排方案。分析了不同的场景,研究结果表明:(1)机动车碳税政策虽然在一定程度上可以起到降低机动车污染和碳排放的作用,但是随着模拟时间的推移,政策效果逐渐减弱。新能源汽车推广政策的减排效果不显著,存在“滞后效应”和“跷跷板效应”。\“(2)科技政策具有环境的多重影响,经济,和健康。它可以显著减少车辆污染和碳排放,到2030年达到碳峰值。(3)并不是说更多的政策对二氧化碳减排更好,CS中存在“排挤效应”。(4)从长期的角度来看,与其他减排情景相比,科技政策是实现CO2和PM2.5共控、实现碳峰值目标的更有效途径。研究结果可为相关部门制定减排政策,实现机动车减污减碳管理提供参考。
    The vehicle exhaust pollution has become an important source of air pollutant and CO2 emissions, with the continuous growth of the number of vehicles. Focusing on the increasingly serious problems of vehicle exhaust pollution and CO2 emissions, a management model of vehicle pollution reduction and carbon reduction was established by using system dynamics. Taking Beijing as the case study city, different emission reduction scenarios were designed. Different scenarios are analyzed, and the results reveal the following: (1) Although the carbon tax policy for motor vehicles can play a role in vehicle pollution reduction and carbon reduction to a certain extent, but as the simulation time goes on, the policy effect is gradually weakened. The emission reduction effect of new energy vehicle promotion policy is not significant, and there is a \"lag effect\" and a \"seesaw effect.\" (2) The science and technology policy has multiple effects of environmental, economic, and health. It can significantly reduce vehicle pollution and carbon emissions, and achieve the peak carbon by 2030. (3) It is not that more policies are better for CO2 emission reduction, and there is a \"crowding out effect\" in the CS. (4) From the perspectives of long term, the science and technology policy is a more effective way to achieve the co-control of CO2 and PM2.5 and achieve the carbon peaking goal compared with other emission reduction scenarios. These results can provide reference for relevant departments to formulate emission reduction policies and realize the management of motor vehicle pollution reduction and carbon reduction.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

    求助全文

  • 文章类型: Journal Article
    暴露于寒冷的室内温度(<18摄氏度)会增加心血管疾病(CVD)的风险,世卫组织已将其确定为不健康住房的来源。虽然温暖的家庭有可能降低心血管疾病的风险,疾病负担的减轻尚不清楚。如果所有澳大利亚寒冷房屋的温度从假定的平均温度16摄氏度永久升高到20摄氏度,我们模拟了CVD负担减轻带来的人口健康收益。
    使用比例多态可生存模型模拟了通过减少CVD来消除冷屋的健康影响。该模型来自澳大利亚和全球疾病负担研究的CVD负担和流行病学数据。根据《澳大利亚住房条件调查》估计,澳大利亚寒冷住房的流行程度。根据已发表的研究估计了室内低温对血压(进而中风和冠心病)的影响。
    消除室内寒冷暴露可以在2016年(基准年)仅通过CVD在寒冷的住房中获得每人活着的一个半星期的额外健康生活。这等于0.447(不确定区间:0.064,1.34;3%的贴现率)HALY每1,000人在其余生中通过减少CVD。在2016年至2035年间,健康总收益的8%是可实现的。虽然看似谦虚,收益优于目前推荐的心血管疾病干预措施,包括对5-9%5年心血管疾病风险的成年人的持续饮食建议(每1000人0.017,UI:0.01,0.027)和持续的生活方式计划,成人5-9%5年CVD风险(0.024,UI:0.01,0.027)。
    仅通过消除寒冷的住房可以获得心血管健康收益,与现实生活中的生活方式和饮食干预措施相媲美。除了心血管疾病外,根除寒冷的住房还将改善呼吸系统和心理健康,因此潜在的健康收益更大。
    Exposure to cold indoor temperature (< 18 degrees Celsius) increases cardiovascular disease (CVD) risk and has been identified by the WHO as a source of unhealthy housing. While warming homes has the potential to reduce CVD risk, the reduction in disease burden is not known. We simulated the population health gains from reduced CVD burden if the temperature in all Australian cold homes was permanently raised from their assumed average temperature of 16 degrees Celsius to 20 degrees Celsius.
    The health effect of eradicating cold housing through reductions in CVD was simulated using proportional multistate lifetable model. The model sourced CVD burden and epidemiological data from Australian and Global Burden of Disease studies. The prevalence of cold housing in Australia was estimated from the Australian Housing Conditions Survey. The effect of cold indoor temperature on blood pressure (and in turn stroke and coronary heart disease) was estimated from published research.
    Eradication of exposure to indoor cold could achieve a gain of undiscounted one and a half weeks of additional health life per person alive in 2016 (base-year) in cold housing through CVD alone. This equates to 0.447 (uncertainty interval: 0.064, 1.34; 3% discount rate) HALYs per 1,000 persons over remainder of their lives through CVD reduction. Eight percent of the total health gains are achievable between 2016 and 2035. Although seemingly modest, the gains outperform currently recommended CVD interventions including persistent dietary advice for adults 5-9% 5 yr CVD risk (0.017 per 1000 people, UI: 0.01, 0.027) and persistent lifestyle program for adults 5-9% 5 yr CVD risk (0.024, UI: 0.01, 0.027).
    Cardiovascular health gains alone achievable through eradication of cold housing are comparable with real-life lifestyle and dietary interventions. The potential health gains are even greater given cold housing eradication will also improve respiratory and mental health in addition to cardiovascular disease.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

    求助全文

公众号