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COSCon21 Call-for-Proposal

Other (Application, Development Framework, etc.): please specifiy
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​Language
English
Chinese
Have you given this presentation before?If yes, please specify the Conference Name. If no, please specify N/A.
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​Job Title
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Social AccountWeChat, Facebook, Twitter Handle, Skype, WhatsApp or etc.(please choose one used most. We recommend you to install Wechat for easier communication in China)
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