响应文件应按竞价文件的要求制作成PDF版电子文件连同扫描版签字盖章页扫描后上传至南航采购平台亦即完整的响应文件应包括：①响应文件PDF版；②签字盖章页扫描件

Response files should be prepared in PDF format according to the requirements of the bidding documents. Along with that, the scanned pages with signature and seal should also be uploaded to the Southern Airlines procurement platform. Therefore, a complete response file should include: 1) Response file in PDF format; 2) Scanned pages with signature and seal.