Population Space and Place最新文献

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Black−White Occupational Segregation in Canada: Insights From Socio‐Economic Factors, Gender and Place 加拿大黑人和白人的职业隔离:来自社会经济因素、性别和地域的洞察
IF 2.4 2区 社会学
Population Space and Place Pub Date : 2026-04-16 DOI: 10.1002/psp.70258
Lisa Kaida, Monica Boyd, Soli Dubash
{"title":"Black−White Occupational Segregation in Canada: Insights From Socio‐Economic Factors, Gender and Place","authors":"Lisa Kaida, Monica Boyd, Soli Dubash","doi":"10.1002/psp.70258","DOIUrl":"https://doi.org/10.1002/psp.70258","url":null,"abstract":"This study advances the racial occupational segregation literature by modelling the intersections of race, gender and place. Analysis of confidential 2021 Canadian Census microdata finds that approximately one‐quarter of Black men or women would have to change occupations for distributions to be similar to their White counterparts. We then augment the largely descriptive Black−White occupational segregation research by using counterfactual conditional segregation techniques. Compared to men, the occupational segregation of Black and White women is explained more by compositional differences in educational attainments, immigrant status and language use. However, the importance of place also cannot be ignored. Language differences between groups matter little in Toronto but are more important for occupational segregation in Montreal. Large Black−White differences in the percentage foreign‐born also play a crucial role in explaining women's levels of occupational segregation in Montreal. These findings emphasize the gender and place variations in Black−White inequalities.","PeriodicalId":48067,"journal":{"name":"Population Space and Place","volume":"28 1","pages":""},"PeriodicalIF":2.4,"publicationDate":"2026-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147719918","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Diversity, Minority Share, and the Fertility Differential Between Turks and Han in China 多样性、少数民族比例与中国突厥和汉族的生育差异
IF 2.6 2区 社会学
Population Space and Place Pub Date : 2026-04-12 DOI: 10.1002/psp.70248
Xiaozhao Yousef Yang
{"title":"Diversity, Minority Share, and the Fertility Differential Between Turks and Han in China","authors":"Xiaozhao Yousef Yang","doi":"10.1002/psp.70248","DOIUrl":"10.1002/psp.70248","url":null,"abstract":"<div>\u0000 \u0000 <p>While fertility differentials between ethno-racial groups are often attributed to socioeconomic or cultural factors, an emerging scholarship emphasises the importance of context for these differentials to occur. This study examines how context-level ethnic composition (ethnic context) shapes fertility differentials using the case of Xinjiang, China. Contextual data from the 2010 decennial census were linked with individual-level data from the 2015 micro-census. Ethnic context was measured by minority share and ethnic diversity, while controlling for key individual and county-level covariates. Hierarchical Poisson regressions show that minority share is <i>positively</i> associated with the number of children, whereas diversity is <i>negatively</i> associated. Moreover, ethnic diversity significantly reduced the fertility differential: Turks, in contrast to Han, reported <i>lower</i> fertility as local diversity increased and the Turk-Han differentials narrowed. To interpret these findings, I combined quantitative analysis with a historical reading. I classified four ethnic context ideal types (the Industrial-military type, the Han immigrant type, the Multicultural type, and the Indigenous type) and used a simple algorithm to pick three representative cases from each ideal type. With these ideal typical cases, I explained how historical processes have created the distinct ethnic contexts that matter for fertility outcomes.</p>\u0000 </div>","PeriodicalId":48067,"journal":{"name":"Population Space and Place","volume":"32 3","pages":""},"PeriodicalIF":2.6,"publicationDate":"2026-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147683683","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Impact of Social Integration on the Fertility Intentions of Migrants: Evidence From China 社会融合对流动人口生育意愿的影响:来自中国的证据
IF 2.6 2区 社会学
Population Space and Place Pub Date : 2026-04-07 DOI: 10.1002/psp.70247
Wenfang Luo, Yanfeng Jiang, Junxi Qian, Dedong Feng
{"title":"The Impact of Social Integration on the Fertility Intentions of Migrants: Evidence From China","authors":"Wenfang Luo,&nbsp;Yanfeng Jiang,&nbsp;Junxi Qian,&nbsp;Dedong Feng","doi":"10.1002/psp.70247","DOIUrl":"10.1002/psp.70247","url":null,"abstract":"<div>\u0000 \u0000 <p>In addition to developed nations, the challenges of population ageing and declining fertility have also intensified in populous East Asian regions, prominently represented by China. Migrants serve as a critical urban labour resource in these countries and territories, and their fertility intentions directly affect long-term population equilibrium and regional sustainability in destination areas. Drawing on two waves of the China General Social Survey (CGSS), this study investigates the mechanisms through which social integration shapes migrants' fertility intentions. A particular focus is placed on the mediating role of perceived fairness. Using a long-difference model supplemented by heterogeneity analyses and mechanism tests, multiple pathways are identified that link social integration to migrants' fertility intentions. The findings reveal that: (1) Social integration tends to suppress migrants' fertility intentions, but perceived fairness partially buffers this effect and reshapes the decision logic. (2) Heterogeneity analyses show that new-generation migrant workers exhibit higher fertility intention as social integration rises, a finding consistent with a strategic pursuit of urban identity via childbearing. Meanwhile, social integration has a homogeneously suppressive effect among migrants across educational groups and among those with rural Hukou. (3) During periods of fertility-policy relaxation, lagging support services failed to translate into institutional trust, which in turn weakened policy effectiveness. Based on these distinct pathways, this study proposes multi-level policy recommendations, offering insights and suggestions for migrant-dense, ageing-before-affluent developing countries.</p>\u0000 </div>","PeriodicalId":48067,"journal":{"name":"Population Space and Place","volume":"32 3","pages":""},"PeriodicalIF":2.6,"publicationDate":"2026-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147683514","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Long-Term Impacts of Canada's Two-Step Immigration Selection in Metropolitan Areas 加拿大大都市地区两步移民选择的长期影响
IF 2.6 2区 社会学
Population Space and Place Pub Date : 2026-03-30 DOI: 10.1002/psp.70238
Stein Monteiro, Yousef Khalifa Aleghfeli, Daniela Ghio
{"title":"Long-Term Impacts of Canada's Two-Step Immigration Selection in Metropolitan Areas","authors":"Stein Monteiro,&nbsp;Yousef Khalifa Aleghfeli,&nbsp;Daniela Ghio","doi":"10.1002/psp.70238","DOIUrl":"10.1002/psp.70238","url":null,"abstract":"<p>This study assesses how Canada's two-step immigration selection process, from non-permanent to permanent residency, impacts population distribution across Census Metropolitan Areas (CMAs). We use a demographic approach incorporating fertility, mortality, international migration and inter-regional mobility to produce sub-provincial population projections based on scenarios of future immigrants transitioning from non-permanent to permanent residency. The results suggest that increasing the share of permanent residents selected from the existing pool of temporary residents decreases overall population levels due to fewer new arrivals from abroad, while encouraging settlement in traditional gateway CMAs of Montreal, Toronto and Vancouver. Even with the higher selection rate, Canada will continue to experience aging in traditional and non-traditional gateway CMAs, and working-age and young immigrants will continue to choose to settle in those traditional CMAs.</p>","PeriodicalId":48067,"journal":{"name":"Population Space and Place","volume":"32 3","pages":""},"PeriodicalIF":2.6,"publicationDate":"2026-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/psp.70238","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147586314","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Demographic Momentum and Fertility Responses to Pronatalist Policies: The Case of Ethnic Minorities in Russia 人口动量和生育率对生育政策的反应:以俄罗斯少数民族为例
IF 2.4 2区 社会学
Population Space and Place Pub Date : 2026-03-27 DOI: 10.1002/psp.70241
Konstantin Kazenin, Sergei Zakharov, Sunnee Billingsley
{"title":"Demographic Momentum and Fertility Responses to Pronatalist Policies: The Case of Ethnic Minorities in Russia","authors":"Konstantin Kazenin, Sergei Zakharov, Sunnee Billingsley","doi":"10.1002/psp.70241","DOIUrl":"https://doi.org/10.1002/psp.70241","url":null,"abstract":"Russia's Maternal Capital policy initially increased total fertility rates, stimulating much discussion on whether it would result in more births or only earlier births. Effects of that policy upon different ethnic groups within Russia, however, have not received systematic attention. Varying demographic, socioeconomic and cultural characteristics of ethnic groups in Russia provide a unique opportunity to assess policy responsiveness, especially in light of the potential expectation that culturally traditional ethnic groups or ethnic groups with lower levels of education and labor market participance may be more responsive to pronatalist policies. We use discrete event history models on IPUMS microdata from the Russian Census of 2010 to consider initial changes in birth probabilities after the Maternal Capital policy was introduced in 2007. The analysis concentrates on births of second children as this parity transition was the first to offer eligibility to the Maternal Capital benefit. Our results show, contrary to the expectation, that effects of the Maternal Capital were stronger among ethnic groups that had higher levels of education and labor market participation of women. Considering demographic patterns, we do not find evidence suggesting that ethnic groups with recently high fertility were more responsive, as might be expected. Instead, ethnic groups with a more intense fertility decline in the preceding period appeared immune to the policy. Our findings imply that pronatalist policies may not be effective when they coincide with deep social changes such as those that lead to intense fertility decline.","PeriodicalId":48067,"journal":{"name":"Population Space and Place","volume":"19 1","pages":""},"PeriodicalIF":2.4,"publicationDate":"2026-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147519284","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Neighbouring in Present-Day Sweden: The Role of Neighbourhood Type, Housing and Personality 当代瑞典的邻居:邻里类型、住房和个性的作用
IF 2.6 2区 社会学
Population Space and Place Pub Date : 2026-03-27 DOI: 10.1002/psp.70245
Karen Haandrikman
{"title":"Neighbouring in Present-Day Sweden: The Role of Neighbourhood Type, Housing and Personality","authors":"Karen Haandrikman","doi":"10.1002/psp.70245","DOIUrl":"10.1002/psp.70245","url":null,"abstract":"<p>Interaction with neighbours is important not only for individual well-being but also for social cohesion. This paper examines how neighbouring – the extent to which residents interact with their neighbours – varies across sociodemographic clusters beyond the conventional urban-rural binary and investigates how housing characteristics and personality traits are further associated with neighbourly interactions. Utilising the Neighbourhood Survey 2020, a representative, large-scale survey drawn from 10 distinct neighbourhood types across Sweden, the findings reveal that greeting neighbours is commonplace, but that talking to neighbours is rarer, while asking neighbours for help is not widespread. A significant portion of this variation stems from the neighbourhood context itself. Residents in homogeneous neighbourhoods in rural and urban areas exhibit higher levels of neighbourly interaction, while in diverse urban areas neighbouring is weaker. Homogeneity, and not diversity, thus fosters neighbouring. The type of neighbouring matters: asking neighbours for help is more common among migrants in deprived areas and among the poorest in rural homogeneous areas, while greeting neighbours is more common in homogeneous rural neighbourhoods, but not so much in small towns. Personality and housing characteristics also explain part of these patterns, with apartment dwellers and individuals scoring high in neuroticism neighbouring less, whereas those who are more extroverted and live in semi‑detached housing show greater neighbourly engagement. These results enrich ongoing debates around ethnic diversity, segregation, and social cohesion, pointing to increasing spatial polarisation.</p>","PeriodicalId":48067,"journal":{"name":"Population Space and Place","volume":"32 3","pages":""},"PeriodicalIF":2.6,"publicationDate":"2026-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/psp.70245","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147519283","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Fertility Transition Across Subnational Areas of Sub‐Saharan Africa: Where do They Stand and What has Contributed Most? 撒哈拉以南非洲次国家地区的生育率转型:现状如何?哪些因素促成了最大的变化?
IF 2.4 2区 社会学
Population Space and Place Pub Date : 2026-03-25 DOI: 10.1002/psp.70244
David A. Sánchez‐Páez, Bruno Schoumaker
{"title":"Fertility Transition Across Subnational Areas of Sub‐Saharan Africa: Where do They Stand and What has Contributed Most?","authors":"David A. Sánchez‐Páez, Bruno Schoumaker","doi":"10.1002/psp.70244","DOIUrl":"https://doi.org/10.1002/psp.70244","url":null,"abstract":"Stylized models of fertility transition predict that fertility declines first in urban areas and then in rural areas. Although capital cities are assumed to be at the forefront of a country's fertility transition, they have not been widely studied in sub‐Saharan Africa. In addition, fertility transition in other urban and rural areas has also been understudied. Using 155 Demographic and Health Surveys, we first calculate fertility rates to determine at which stage each of the three subnational areas in 34 countries is in the fertility transition. We then estimate the fertility‐inhibiting effect of the proximate determinants of fertility to analyze what has contributed most to the transition. Our results confirm that capital cities lead fertility transition, as they tend to be one phase further in the transition than other urban areas and two phases further than rural areas. We find that the subnational areas that have made the most rapid progress in the transition are those with a sharp increase in the fertility‐inhibiting effect of contraception; however, contraceptive use remains low. Although the inhibiting effect of contraception increases as the fertility transition progresses, the greatest inhibiting effect is that of postpartum infecundability, which is a common feature for virtually all subnational areas, even at the most advanced stages of the transition. In the context of stalled fertility in sub‐Saharan Africa, reducing the duration of postpartum infecundability without offsetting it with an increase in contraceptive use leaves open the possibility of further fertility stalls or longer‐lasting current stalls.","PeriodicalId":48067,"journal":{"name":"Population Space and Place","volume":"58 1","pages":""},"PeriodicalIF":2.4,"publicationDate":"2026-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147519285","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Consequences of Social Frontiers Segregation for Labour Income: Evidence From Oslo 社会边界隔离对劳动收入的影响:来自奥斯陆的证据
IF 2.6 2区 社会学
Population Space and Place Pub Date : 2026-03-22 DOI: 10.1002/psp.70242
Henrik Lindegaard Andersen, Urban Lindgren, Liv Osland
{"title":"Consequences of Social Frontiers Segregation for Labour Income: Evidence From Oslo","authors":"Henrik Lindegaard Andersen,&nbsp;Urban Lindgren,&nbsp;Liv Osland","doi":"10.1002/psp.70242","DOIUrl":"10.1002/psp.70242","url":null,"abstract":"<p>We study the impact on earned income of living in neighbourhoods characterised by a special type of residential segregation, called social frontiers. Possible labour market outcomes of living in neighbourhoods marked by social frontiers have not been previously studied. Social frontiers represent abrupt transitions between adjacent neighbourhoods and arise when there are significant and substantial spatial divisions or ‘cliff-edges’ in the proportion of population groups in the contiguous neighbourhoods. This type of segregation, where highly different demographic groups are located close to each other, could cause reduced inter-group contact, which may impact labour market attainment. We use rich individual-level administrative data from Oslo (Norway) and advanced statistical methods for systematically identifying social frontiers along immigrant-native lines. Our causal design applies propensity score matching (PSM) to control for self-selection into neighbourhoods, which might otherwise bias the results. We find that residing on the immigrant-dense side of a social frontier has a statistically significant negative effect on the earnings of men, but overall, the effects are small.</p>","PeriodicalId":48067,"journal":{"name":"Population Space and Place","volume":"32 2","pages":""},"PeriodicalIF":2.6,"publicationDate":"2026-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/psp.70242","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147519287","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Chronicity of Crisis: The Complex Entanglement of Prolonged Internal Displacement in Georgia 危机的长期性:格鲁吉亚长期国内流离失所的复杂纠缠
IF 2.6 2区 社会学
Population Space and Place Pub Date : 2026-03-22 DOI: 10.1002/psp.70243
Mikel Venhovens, Nargiza Arjevanidze
{"title":"The Chronicity of Crisis: The Complex Entanglement of Prolonged Internal Displacement in Georgia","authors":"Mikel Venhovens,&nbsp;Nargiza Arjevanidze","doi":"10.1002/psp.70243","DOIUrl":"10.1002/psp.70243","url":null,"abstract":"<p>Thirty years after the Georgian–Abkhaz War of 1992–1993, internal displacement remains an unresolved and open-ended crisis in the Republic of Georgia. Drawing on long-term ethnographic research conducted between 2016 and 2023, this article examines how prolonged forced displacement becomes normalised and experienced as a condition of chronic crisis rather than a temporary rupture. Focusing on ethnic Georgian internally displaced persons (IDPs) from Abkhazia, the article challenges conventional understandings of crisis as abrupt, exceptional, and time-bound. Instead, it conceptualises chronic crisis as a long-term demographic and social condition characterised by the entanglement of hardship and resilience in everyday life. It explores how IDPs experience liminality, non-return and the ongoing uncertainty of displacement. Central to this analysis is the notion of home, understood not merely as material housing but as a symbolic site of belonging, memory and identity. While recent state re-housing programmes have improved material living conditions for many IDPs, they have also concretised non-return and intensified emotional dislocation, revealing a persistent gap between ‘house’ and ‘home.’ By foregrounding everyday practices and spatial experiences, this article contributes to debates in population geography and human geography on displacement, crisis and normality, offering an account of how people endure, adapt and make sense of life in protracted displacement, as even those who have successfully integrated are still marked by their past experiences of displacement and the lingering effects of war.</p>","PeriodicalId":48067,"journal":{"name":"Population Space and Place","volume":"32 2","pages":""},"PeriodicalIF":2.6,"publicationDate":"2026-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/psp.70243","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147518821","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Self‐Reported Motives for Immobility or Constraints to Moving: A Review and Assessment of Ten Survey Measures 自我报告的不动或限制移动的动机:对十项调查措施的回顾和评估
IF 2.4 2区 社会学
Population Space and Place Pub Date : 2026-03-16 DOI: 10.1002/psp.70240
Clara H. Mulder, Brian Joseph Gillespie, Tialda Haartsen, Ewoud T. Jansma, Kilian J. Steigner, Jonne A. K. Thomassen
{"title":"Self‐Reported Motives for Immobility or Constraints to Moving: A Review and Assessment of Ten Survey Measures","authors":"Clara H. Mulder, Brian Joseph Gillespie, Tialda Haartsen, Ewoud T. Jansma, Kilian J. Steigner, Jonne A. K. Thomassen","doi":"10.1002/psp.70240","DOIUrl":"https://doi.org/10.1002/psp.70240","url":null,"abstract":"Self‐reported motives for residential immobility are important for understanding why people remain in place, yet existing survey measures vary widely and suffer from a lack of standardisation. We review self‐report measures about motives for immobility or constraints to moving—measured with survey items asking what made it difficult for respondents to relocate—in ten existing surveys. We report several advantages and disadvantages of different approaches and provide recommendations for future questionnaire design. Based on descriptive statistics from available survey measures and on the wording of the questions and response options, we pinpoint situations where questionnaire design rather than respondents' true motivations might influence answer patterns. We provide eight recommendations to guide future research design, focusing on question wording, sample selection, and response options and structure. This review provides a starting point for standardizing the measurement of immobility motives, enabling future researchers to make informed research design decisions and improve cross‐study comparability.","PeriodicalId":48067,"journal":{"name":"Population Space and Place","volume":"93 1","pages":""},"PeriodicalIF":2.4,"publicationDate":"2026-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147470971","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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