Character-led stories introduce preschool children to the science of simple machines. Follow the adventures of Screw, Wedge, Ramp, Pulley, Wheel and Lever as they help each other to perform simple tasks.
购买此电子书可免费获赠一本!
格式 PDF ● 网页 24 ● ISBN 9789186580681 ● 编辑 Felicia Law ● 出版者 Bramblekids ● 发布时间 2018 ● 下载 3 时 ● 货币 EUR ● ID 6655432 ● 复制保护 Adobe DRM
需要具备DRM功能的电子书阅读器