大学资源网

电子发烧友网 联手全球半导体产业领先企业，为中国电子研发工程师及开发者，提供全面的技术、产业和供应链资讯和在线社区交流服务的平台。

Desmos提供一流的计算器、数字化数学课程和教学大纲，以此帮助每一位学生学习数学并爱上数学。Desmos offers best-in-class calculators, digital math activities, and curriculum to help every student love math and love learning math.

北京大学公开课

专业的学习型Office技术社区-Excel表格入门教程，Office应用问题交流，免费下载学习excel、Word、PPT软件视频教程，免费分享excel表格模板

大型公开在线课程项目,Learn online and earn valuable credentials from top universities like Yale, Michigan, Stanford, and leading companies like Google and IBM. Join Coursera for free and transform your career with degrees, certificates, Specializations, & MOOCs in data science, computer science, business, and dozens of other topics.

中国历朝代视频讲解