首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 31 毫秒
1.
Considering the current structural challenges that exist for students of color (SOC) in accessing a higher education, an epistemology is needed that better represents the complex process SOC endure in this pursuit. College access literature either proposes stages (Hossler and Gallagher in Coll Univ 62(3):207–221, 1987), contextual layers (Perna in Higher education: handbook of theory and research. Springer, Amsterdam, 2006) or a pipeline approach (Horn in Confronting the odds: students at risk and the pipeline to higher education. National Center for Education Statistics, Washington, D.C., 1997; Cabrera and LaNasa in Understanding the colleges choice of disadvantaged. Jossey-Bass Inc, San Francisco, 2000a) that do not consider the additional resources and skills SOC must possess in navigating their educational pathways. This paper presents findings from two larger studies to propose an approach that colors outside the standard college access and readiness frameworks and uses a more culturally responsive approach to consider the complex and auspicious ways in which SOC navigate their college pathways. Culturally responsive recommendations for increasing college readiness and access for SOC in secondary schools will be provided based on the perspectives of SOC themselves.  相似文献   

2.
The purpose of this study was to explore academic and social integration and other outcomes for community college transfer students. The study used Tinto’s (Leaving college: Rethinking the causes and cures of student attrition, 1993) Longitudinal Model of Institutional Departure and Deil-Amen’s (J Higher Educ, 82:54–91, 2011) concept of “socio-academic integrative moments” to inform the selection and organization of potential predictors. We developed regression models for relationships between demographic and background variables of interest and perceived academic and social integration following the first six weeks at the receiving university. We also included these perceived integration scores in regression models for six outcomes (first and second semester grade point average, first and second semester earned hours ratios, and second and third semester persistence). Academic and previous college background explained the greatest amount of variance in predicting early integration and academic outcomes.  相似文献   

3.
Severe enduring reading- and writing-accuracy difficulties seem a phenomenon largely restricted to nations using complex orthographies, notably Anglophone nations, given English’s highly complex orthography (Geva and Siegel, Read Writ 12:1–30, 2000; Landerl et al., Cognition 63:315–334, 1997; Share, Psychol Bull 134(4):584–615, 2008; Torgesen and Davis, J Exp Child Psychol 63:1–21, 1996; Vellutino, J Learn Disabil 33(3):223, 2000). They seem rare in transparent orthography nations such as Finland, which use highly regular spelling and few spelling rules beyond letter sounds, and most children read and write with impressive accuracy by the end of Year 1 (Holopainen et al., J Learn Disabil 34(5):401–413, 2001; Seymour et al., Br J Psychol 94:143–174, 2003; Spencer and Hanley, Br J Psychol 94(1):1–29, 2003; J Res Read 27(1):1–14, 2004). Orthographic complexity has strong and diverse impacts on reading, writing and academic development (Aro, Learning to read: The effect of orthography, 2004; Galletly and Knight, Aust J Learn Disabil 9(4):4–11, 2004; Aust Educ Res 38(3):329–354, 2011). Despite these strong effects, orthographic complexity is rarely included as a variable in reading research studies considering evidence from both Anglophone (complex orthography) and transparent-orthography readers, or included in discussion of factors influencing results. This paper discusses the differences in reading-accuracy development and difficulties evidenced in studies of Anglophone (complex-orthography) and transparent-orthography readers. It then explores instances of orthographic complexity not being considered in studies where it may have impacted results. This disregarding of orthographic complexity as a variable in research studies appears an oversight, one likely to be contributing to continuing confusion on many aspects of reading and writing development in both healthy- and low-progress readers. Needs for research in these areas are discussed.  相似文献   

4.
New organisational structures and the transformation of academic work   总被引:2,自引:0,他引:2  
This article will particularly focus on Norway and the consequences for academic work. Frequently in studies of academic work, focus has been on academics’ individual autonomy and to what extent the latter is challenged (Altbach in Ann Am Acad Pol Soc Sci 448:1–14, 1980; Shattock in High Educ 41:27–47, 2001). One of the shortcomings in literature dealing with academic workplace is lack of attention paid to the emerging division of work generated by an increasing differentiation of the academic profession (Musselin in Knowledge Matters, The public mission of the research university, 2011). In order to better address complexities and dynamics that surround academic work, the article will in particular examine whether academic work is subject to an increasing specialization and collectivization. In our attempt to observe changes in the practices of academic work, particular interest is given to “how the organization of an academic enterprise affects academic work” (Blau in The organization of academic work. Transaction Publishers, New Brunswick, 1994:8). Inspired by organizational theorists such as Brunsson and Olsen in The reforming organization. Brunsson and Olsen (The reforming organization. Fagbokforlaget, Bergen, 1997) we also want to attend to the relations between organizational change and academic work. Here we address the relationship between formal organization and informal organization which is likely to develop as decoupled structures—one adapted to institutionalized norms of society and the other for coordinating activities. Furthermore, there are tendencies suggesting that universities are becoming less special as an organization (Musselin in Key challenges to the academic profession. INCHER-Kassel, Paris, 2007) and converge to more general organizational characteristics by constructing dimensions of organizations such as identity, hierarchy and rationality (Brunsson and Sahlin-Andersson in Constructing organizations: the example of public sector reform, Organization Stud 21:4, 2000). In this article we are mainly interested in how hierarchy is constructed enabling coordination by an “authoritative centre” (Brunsson and Sahlin-Andersson in Constructing organizations: the example of public sector reform, Organization Stud 21:4, 2000:726) and how it interferes with traditional forms of organizing the university. This calls for a concern to whether the specificity of academic work, built of the mainly individual exercise of a large diversity of tasks, remains a key characteristic for organizing academic activities at universities. Empirically this article studies changes in academic work regarding new patterns in organizing research funding and doctoral education in Norway that emerged in the last decade. Like in other European countries, new policies for research funding and doctoral education have led to the creation of new organisational structures within Norwegian HEIs, namely research centres and doctoral schools.  相似文献   

5.
The nature of moral values has occupied philosophers and educationalists for centuries and a variety of claims have been made about their origin and status. One tradition suggests they may be thoughts in the mind of God; another that they are eternal truths to be reached by rational reflection (much like the truths of mathematics) or alternatively through intuition; another that they are social conventions; and another (from the logical positivists) that they are not verifiable facts but simply the expression of emotional likes and dislikes. Standard introductory texts (e.g., Bowie 2004; Vardy and Grosch 1999) on the subject of ethics rarely mention Darwin or Darwinism (Mepham 2005 is a useful exception) possibly mindful of the fact that the relationship of evolutionary biology to moral questions has had a troublesome history. The effect of this has been that whole generations of moral philosophers have given the biological sciences a wide berth and consequently often remain poorly informed about recent advances in evolutionary thought and the neurosciences. On the other hand, scientists have developed interesting models of the evolution of the moral sentiments and are using new imaging techniques to explore the centres of the brain associated with emotion and motivation, but many have been fearful of committing the naturalistic fallacy and so have steered clear of extrapolating their findings to ethical questions. No one after all wants to be seen to be committing an elementary logical blunder. But in the last 20 years, evolutionary biologists have regained the confidence to explore the implications of evolution for the study of ethics (de Waal 1996; Wilson 1998; Wright 1994; Greene 2003). This paper is designed to encourage those entrusted with the teaching of ethics to be open to the potential of Darwinism as a source of ideas on the origins and status of ethical thought and behaviour. It is also hoped that it will illustrate for science educators the enormous explanatory power inherent in Darwinian thought.  相似文献   

6.
Higher education in the United States is facing increasing demands for colleges and universities to demonstrate what students learn and that they are providing a high-quality education experience during the undergraduate years (Pascarealla et al. in Chang Mag High Learn 42(1):16–22, 2010). Despite evidence of the elevation of grades in higher education dating back to the 1970s, attempts to rein in this phenomenon have been largely unsuccessful (Nikolakakos et al. in Coll Univ 87(3):2–14 2012). It is our contention that attempts to reform grading have not succeeded because their focus is too narrow. After providing background information on the extent and causes of grade inflation, we will propose a synergistic approach to dealing with the problem of grade inflation.  相似文献   

7.
Multicultural counseling competencies (MCCs) have typically been measured with instruments designed for and normed on mental health professionals – for example, MCCTS-R; Holcomb-McCoy (Professional School Counseling 4:195–208, 2001); MCI; Sodowsky et al. (Journal of Counseling and Development 41:137–148, 1994); D’Andrea et al. (Journal of Counseling & Development 70:143–150, 1991). One published instrument specifically assesses school counselor MCCs – MCCTS-R; Holcomb-McCoy (Professional School Counseling 4:195–208, 2001) – but it does not conform to ASCA standards (2010, E.2). Following a set of validation procedures, an instrument designed to specifically assess school counselors’ multicultural counseling competencies was created that conforms to American School Counselor Association and Association for Multicultural Counseling and Development standards. Its creation is detailed here and the resulting instrument is presented for examination and consideration.  相似文献   

8.
Children in Kenya’s Kisumu District Primary Schools (N?=?430) completed three measures of trauma. Respondents completed the My Worst Experience Scale (MWES; Hyman and Snook 2002) and its supplement, the School Alienation and Trauma Survey (SATS; Hyman and Snook 2002), sharing their worst experiences overall and specifically in schools. Participants also completed the Trauma and Attachment Belief Scale (TABS; Pearlman 2003), addressing their experiences of violence. The study examined children’s perceptions about themselves and others in the aftermath of violent experiences and the relationship between children’s trauma symptoms from experiencing violence and their social and academic functioning. Differences in the presence, frequency, and severity of symptoms emerged, with a large percentage attaining statistical and clinical significance. Research and practice implications are provided.  相似文献   

9.
The goal of this article is to examine the racially hostile environment of U.S. public schooling towards Black males. Drawing on the work of Foucault (Discipline and punish. The birth of the prison, Penguin Books, London, 1977; Michel Foucault: beyond structuralism and hermeneutics, The Harvester Press, Brighton, 1982) regarding the construction of society’s power relations and Bourdieu’s (Power and ideology in education, Oxford University Press, New York, 1977; Handbook of theory and research for the sociology of education. Greenwood Press, New York, 1986; The logic of practice. Polity Press, Cambridge, 1990) work concerning how beliefs are established, this article demonstrates how power operates within schools alongside racism, racial profiling, and gender stereotypes to criminalize Black males. Additionally, the utilization of the theoretical lenses of populational reasoning (Popkewitz in Struggling for the soul: the politics of schooling and the construction of the teacher, Teachers College Press, New York, 1998), conceptual narrative (Somers and Gibson in Social theory and the politics of identity, Blackwell, Cambridge, 1994), and critical race theory (Delgado and Stefancic 2001) links the common narrative and the cultural memory of Black males to the death of Trayvon Martin and the treatment of Black males in schools.  相似文献   

10.
Through a critical cultural assets model, the authors use the methodological practices of collaboration, community site visits, document analysis, and interviews with cultural insiders to explore schools’ continued rejection of academic belonging for people from “othered” communities. They explore the case of Samoan youth—a marginalized cultural group—to contest the shared belief that school-based citizenry is an educational impossibility. Interview data with Samoan elders is analyzed using Consensual Qualitative Research methods (Hill et al. in Couns Psychol 24(4):517–572, 1997). They present themes of cultural capacities and academic disconnection to imagine a school context for the integration of cultural assets for “othered” youth (Kliewer and Biklen in Teach Coll Rec 109(12):2579–2600, 2007; Kliewer et al. American Educ Res Assoc J 3(2):163–192, 2006).  相似文献   

11.
Agnotology is a term that has been used to describe the study of ignorance and its cultural production (Proctor in Agnotology: the making and unmaking of ignorance. Stanford University Press, Stanford, 2008). For issues that are contentious in the societal realm, though largely not in the scientific realm, such as human evolution or the broad basics of human-induced climate change, it has been suggested that explicit study of relevant misinformation might be a useful teaching approach (Bedford in J Geogr 109(4):159–165, 2010). Recently, Legates et al. (Sci Educ. doi:10.1007/s11191-013-9588-3, 2013) published an aggressive critique of Bedford’s (J Geogr 109(4):159–165, 2010) proposals. However, the critique is based on a comprehensive misinterpretation of Bedford’s (J Geogr 109(4):159–165, 2010) paper. Consequently, Legates et al. (Sci Educ. doi:10.1007/s11191-013-9588-3, 2013) address arguments not actually made by Bedford (J Geogr 109(4):159–165, 2010). This article is a response to Legates et al. (Sci Educ. doi:10.1007/s11191-013-9588-3, 2013), and demonstrates their errors of interpretation of Bedford (J Geogr 109(4):159–165, 2010) in several key areas: the scientific consensus on climate change; misinformation and the public perception of the scientific consensus on climate change; and agnotology as a teaching tool. We conclude by arguing that, although no single peer-reviewed publication on climate change, or any other scientific issue, should be accepted without due scrutiny, the existence of a scientific consensus—especially one as overwhelming as exists for human-induced climate change—raises the level of confidence that the overall findings of that consensus are correct.  相似文献   

12.
Social and interpersonal support has mostly been carried out face-to-face. However, the internet was able, in the last couple of decades, to facilitate social interactions through a range of computer-mediated communication (CMC) interfaces—from email applications, chat-rooms, forums, instant messages (IM), short text messages (SMS), social networks, and others. Various studies have examined how these interfaces influence interpersonal communication among adolescents from a wide spectrum of angles. Some studies examined the impact that CMC interfaces are having on written language Ling (2005); Segerstad (2002), while others examined the behavioral and economic effects which they applied to different users Yang (2003); Livingstone (2008). Our research aimed to examine the correlation between CMC interfaces and interpersonal social support among at-risk adolescents, with the goal of studying the patterns of use of today’s four most commonly used CMC interfaces: email, SMS, IM, and closed forums within social networks. An occasional sample was taken from two cities and involved 316 (n?=?316) 8th graders who were identified by their teachers as being at-risk teenagers. Each teenager filled out a questionnaire Kraut (2002) which was adapted especially for this research in order to examine the patterns of use with the four CMC interfaces. The results indicated that instant-message (IM) and the short-message (SMS) interfaces were the most preferred interfaces for expressing social support among adolescents at-risk. These findings reflect the results of other studies, which showed a clear preference for the IM interface in normative adolescents Lenhart et al. (2001); Boneva et al. (2005). However, in contrast with these results, our study found that the conversations on social characteristics were more supportive than those on emotional characteristics. We found that the participating at-risk adolescents preferred the IM interface only when topics of conversations were related to the categories of ‘negative partner’ (conversations on topics such as complains and gossip). To a similar extent, they preferred the SMS interface only in the category of ‘social support’ (conversations on topics such as asking favors or advice and gossip), as opposed to email and chat interfaces. However, they preferred to a significant degree the chat interface when the conversations were on topics related to the category of ‘relationship partner’ (conversations on topics such as acquaintances and romance). These results indicate that there is a correlation between the type of the interface and the topics of conversation, and that at-risk adolescents prefer certain interfaces over others for conducting conversations of a different nature.  相似文献   

13.
This paper reports on 6–11-year-old children’s ‘sayings and doings’ (Harré 2002) as they explore molecule artefacts in dialectical-interactive teaching interviews (Fleer, Cultural Studies of Science Education 3:781–786, 2008; Hedegaard et al. 2008). This sociocultural study was designed to explore children’s everyday awareness of and meaning-making with cultural molecular artefacts. Our everyday world is populated with an ever increasing range of molecular or nanoworld words, symbols, images, and games. What do children today say about these artefacts that are used to represent molecular world entities? What are the material and social resources that can influence a child’s everyday and developing scientific ideas about ‘molecules’? How do children interact with these cognitive tools when given expert assistance? What meaning-making is afforded when children are socially and materially assisted in using molecular tools in early chemical and nanoworld thinking? Tool-dependent discursive studies show that provision of cultural artefacts can assist and direct developmental thinking across many domains of science (Schoultz et al., Human Development 44:103–118, 2001; Siegal 2008). Young children’s use of molecular artefacts as cognitive tools has not received much attention to date (Jakab 2009a, b). This study shows 6–11-year-old children expressing everyday ideas of molecular artefacts and raising their own questions about the artefacts. They are seen beginning to domesticate (Erneling 2010) the words, symbols, and images to their own purposes when given the opportunity to interact with such artefacts in supported activity. Discursive analysis supports the notion that using ‘molecules’ as cultural tools can help young children to begin ‘putting on molecular spectacles’ (Kind 2004). Playing with an interactive game (ICT) is shown to be particularly helpful in assisting children’s early meaning-making with representations of molecules, atoms, and their chemical symbols.  相似文献   

14.
Societal benefit depends on the general public’s understandings of biotechnology (Betsch in World J Microbiol Biotechnol 12:439–443, 1996; Dawson and Cowan in Int J Sci Educ 25(1):57–69, 2003; Schiller in Business Review: Federal Reserve Bank of Philadelphia (Fourth Quarter), 2002; Smith and Emmeluth in Am Biol Teach 64(2):93–99, 2002). A National Science Foundation funded survey of high school biology teachers reported that hands-on biotechnology education exists in advanced high school biology in the United States, but is non-existent in mainstream biology coursework (Micklos et al. in Biotechnology labs in American high schools, 1998). The majority of pre-service teacher content preparation courses do not teach students appropriate content knowledge through the process of inquiry. A broad continuum exists when discussing inquiry-oriented student investigations (Hanegan et al. in School Sci Math J 109(2):110–134, 2009). Depending on the amount of structure in teacher lessons, inquiries can often be categorized as guided or open. The lesson can be further categorized as simple or authentic (Chinn and Malhotra in Sci Educ 86(2):175–218, 2002). Although authentic inquiries provide the best opportunities for cognitive development and scientific reasoning, guided and simple inquiries are more often employed in the classroom (Crawford in J Res Sci Teach 37(9):916–937, 2000; NRC in Inquiry and the national science education standards: a guide for teaching and learning, 2000). For the purposes of this study we defined inquiry as “authentic” if original research problems were resolved (Hanegan et al. in School Sci Math J 109(2):110–134, 2009; Chinn and Malhotra in Sci Educ 86(2):175–218, 2002; Roth in Authentic school science: knowing and learning in open-inquiry science laboratories, 1995). The research question to guide this study through naturalistic inquiry research methods was: How will participants express whether or not an authentic inquiry experience enhanced their understanding of biotechnology? As respondents explored numerous ideas in order to develop a workable research question, struggled to create a viable protocol, executed their experiment, and then evaluated their results, they commented on unexpected topics regarding the nature of science as well as specific content knowledge relating to their experiments. Four out of five participants reported they learned the most during authentic inquiry laboratory experience.  相似文献   

15.
The internal/external (I/E) frame of reference model (Marsh, Am Educ Res J 23:129–149, 1986) conceptualizes students' self-concepts as being formed by dimensional as well as social comparison processes. In the present study, the I/E model was tested and extended in a sample of elementary school children. Core academic skills of reading, writing, and math were related to corresponding and non-corresponding self-concept facets to determine the onset of dimensional contrast effects. School achievement and domain-specific academic self-concepts of 1,114 students from grades 1 to 3 were assessed. Negative paths were found for math achievement on reading self-concept and for reading achievement on math self-concept in the third grade. Math achievement was not associated negatively with writing self-concept. Positive influences were found within the verbal domain for writing achievement on reading self-concept from grade 1 onward. The results suggest a broad interpretation of the I/E model in which contrast as well as assimilation effects are possible. Factors influencing the dimensional comparison processes are discussed.  相似文献   

16.
The Threshold Capability Integrated Theoretical Framework (TCITF) is presented as a framework for the design of university curricula, aimed at developing graduates’ capability to deal with previously unseen situations in their professional, social, and personal lives. The TCITF is a new theoretical framework derived from, and heavily dependent upon, the ideas of the Threshold Concepts Framework (Meyer and Land 2003a; Land et al. 2006) and Capability Theory (Bowden and Marton 1998; Bowden et al. 2000; Bowden 2004). Capability theory is firmly based in phenomenography and variation theory, is concerned with the development of knowledge capability, but has had limited application in practice. The threshold concepts framework has enjoyed greater acceptance by a large range of academics in many fields. This acceptance has initially focussed on analytic studies of what constitutes a threshold concept—and the location and distribution of such concepts—in a given domain. In many instances subsequent attention has focussed on issues of pedagogy and assessment, including the design of curricula. We propose a merging of capability theory and the threshold concepts framework and argue that capability and variation theories provide the ideal mechanism for developing a strong pedagogical approach based on newly emerging knowledge of the critical features of threshold concepts within different domains.  相似文献   

17.
Despite an increased focus on science, technology, engineering, and mathematics (STEM) in U.S. schools, today’s students often struggle to maintain adequate performance in these fields compared with students in other countries (Cheek in Thinking constructively about science, technology, and society education. State University of New York, Albany, 1992; Enyedy and Goldberg 2004; Mandinach and Lewis 2006). In addition, despite considerable pressure to promote the placement of students into STEM career fields, U.S. placement is relatively low (Sadler et al. in Sci Educ 96(3):411–427, 2012; Subotnik et al. in Identifying and developing talent in science, technology, engineering, and mathematics (STEM): an agenda for research, policy and practice. International handbook, part XII, pp 1313–1326, 2009). One explanation for the decline of STEM career placement in the U.S. rests with low student affect concerning STEM concepts and related content, especially in terms of self-efficacy. Researchers define self-efficacy as the internal belief that a student can succeed in learning, and that understanding student success lies in students’ externalized actions or behaviors (Bandura in Psychol Rev 84(2):191–215, 1977). Evidence suggests that high self-efficacy in STEM can result in student selection of STEM in later educational endeavors, culminating in STEM career selection (Zeldin et al. in J Res Sci Teach 45(9):1036–1058, 2007). However, other factors such as proficiency play a role as well. The lack of appropriate measures of self-efficacy can greatly affect STEM career selection due to inadequate targeting of this affective trait and loss of opportunity for early intervention by educators. Lack of early intervention decreases selection of STEM courses and careers (Valla and Williams in J Women Minor Sci Eng 18(1), 2012; Lent et al. in J Couns Psychol 38(4), 1991). Therefore, this study developed a short-form measure of self-efficacy to help identify students in need of intervention.  相似文献   

18.
The transition from the industrial age to the information age has happened and is still happening in our society (Duffy, 2009). However, our current educational systems still operate based on the needs of the industrial-age society (Watson, Watson, & Reigeluth, n.d), making them among the least impacted organizations (Reigeluth & Joseph, 2002). This misalignment between schools and society takes the form of a discrepancy between what and how we teach students in schools and how schools are organized and operated (Banathy, 1991; Hargreaves, 1999; Wagner et al., 2006). Educational systems should address current students’ needs to facilitate their learning process and better preparethem for their future lives in society (Collins & Halverson, 2009). In this article, we explain how we envision the new paradigm of education and what roles educational technologists should play to help transform educational systems to this new paradigm.  相似文献   

19.
This paper reports on a teacher’s and his students’ responsiveness to a new tetrahedral-oriented (Mahaffy in J Chem Educ 83(1):49–55, 2006) curriculum requiring more discursive classroom practices in the teaching of chemistry. In this instrumental case study, we identify the intentions of this learner-centered curriculum and a teacher’s development in response to this curriculum. We also explore the tensions this teacher experiences as students subsequently respond to his adjusted teaching. We use a Chemistry Teacher Inventory (Lewthwaite and Wiebe in Res Sci Educ 40(11):667-689, 2011; Lewthwaite and Wiebe in Can J Math Sci Technol Educ 12(1):36–61, 2012; Lewthwaite in Chem Educ Res Pract. doi:10.1039/C3RP00122A, 2014) to assist the teacher in monitoring how he teaches and how he would like to improve his teaching. We also use a student form of the instrument, the Chemistry Classroom Inventory and Classroom Observation Protocol (Lewthwaite and Wiebe 2011) to verify the teacher’s teaching and perception of student preferences for his teaching especially in terms of the discursive processes the curriculum encourages. By so doing, the teacher is able to use both sets of data as a foundation for critical reflection and work towards resolution of the incongruence in data arising from students’ preferred learning orientations and his teaching aspirations. Implications of this study in regards to the authority of students’ voice in triggering teachers’ pedagogical change and the adjustments in ‘teachering’ and ‘studenting’ required by such curricula are considered.  相似文献   

20.
The National Survey of Student Engagement (NSSE) draws from student feedback to gauge the level of academic challenge at particular institutions (Kuh 2009). Inspired by attempts to understand the implications of NSSE data on other campuses (Payne et al. 2005), a cross-disciplinary research group at our institution developed a multidimensional model of academic rigor. We argue that learning is most rigorous when students are actively learning meaningful content with higher-order thinking at the appropriate level of expectation within a given context. The model allows instructors and institutional decision-makers to aim towards increased levels of academic rigor in classrooms, departments, and across campus.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号