2020 Information Technology Grade seven or eight Volume 4 Hunan Electronics audio-visual publishing house 2019 Audited version Hunan Province Compulsory education experiment textbook loop textbook 78 grade teaching material Junior school student Attend class

All products available for shopping agent service displayed on Buy2you are products retrieved from third-party shopping platforms and are not directly sold by Buy2you. Thus, in case of any infringement issue involved by the aforesaid products, all liabilities incurred shall be borne by the corresponding sellers on the third-party platform while Buy2you will not undertake any relevant, collateral or joint liability.