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  1. proquest.com
    https://about.proquest.com/en/products-services/pqdt

    ProQuest Dissertations & Theses Global

  2. ustc.edu.cn
    https://lib.ustc.edu.cn/电子资源/pqdt学位论文

    PQDT学位论文 - 中国科学技术大学图书馆

  3. proquest.com
    https://about.proquest.com/zh/products-services/pqdtglobal

    专业论文 » 论文全球 - ProQuest

  4. proquest.com
    https://about.proquest.com/en/dissertations

    Dissertations & Theses - ProQuest

  5. libguides.com
    https://proquest.libguides.com/pqdt_ch/home

    ProQuest Dissertations & Theses 全球博硕论文库

  6. wikipedia.org
    https://en.wikipedia.org/wiki/ProQuest...

    ProQuest Dissertations and Theses - Wikipedia

  7. libguides.com
    https://proquest.libguides.com/pqdt_tw

    ProQuest Dissertations & Theses 全球博碩士論文資料庫

  8. libguides.com
    https://proquest.libguides.com/pqdt_ch/content

    ProQuest Dissertations & Theses 全球博硕论文库

  9. pqdtcn.com
    https://www.pqdtcn.com

    国外学位论文中国集团全文检索平台

  10. proquest.com
    https://www.proquest.com/pqdtglobal

    ProQuest | Better research, better learning, better insights.