3b45232dc&e=3f00827e35> sequence. <http://edx.us5.list-manage.com/track/cl=ck?u=1822a33c054dc20e223ca40e2&id=bc89fe9f62&e=3f00827e35> Principles=of Electric Circuits, Part 2 TsinghuaX Introduction to the real-world application of electric circuits used in cu=ting-edge technologies. (Mandarin with English subtit