B??c 2: Nh?p s??ti?n n?p, h??th?ng s??t?o mã QR t??ng ?ng (th?i gian hi?n th??Hello?u l?c trong vòng 15 phút)."When I want courses on subject areas that my university doesn't provide, Coursera is probably the greatest sites to go."?????ng ký m?t tài kho?n t?i SHBET, ng??i ch?i ch??c?n th?a mãn nh?ng ?i?u ki?n sau:Examining an current know-how