页数：27页|格式：ppt下载文档
会计学1迷路的小孩blind peopleWe can help themcross the street.Who needs help? What can we do to help...
页数：26页|格式：pptx下载文档
? e to our class! Who needs help? What can we do to help them? old people We...
页数：27页|格式：ppt下载文档
