会议日期及地点更改通知下载链接：https://drvoicedev.oss-cn-beijing.aliyuncs.com/drvoice/server/uploadfile/2021/10/26/20211026095833121.pd
大会PPT模板4:3下载链接：http://statics.drvoice.cn/uploadfile/2021/0713/20210713041429804.pptx
大会PPT模板16:9下载链接：https://drvoicedev.oss-cn-beijing.aliyuncs.com/drvoice/server/uploadfile/2021/11/23/20211123093347339.ppt