SEGUNDO A Y B

https://drive.google.com/open?id=16qNKlubL2PkxHiXm-tDX589bBePmwtYk
https://drive.google.com/open?id=16mHRA4IRCgHn7QjzeUd2KRGJb4o_Jv78
https://drive.google.com/open?id=16mDETGWFgcgNvh_QSi60iVLFcWJce2rs
https://drive.google.com/open?id=16hWQT-V1ck1WL7JS4c_UtCJyX5E-2ax9
https://drive.google.com/open?id=16_gfz1NvYqBieCuY419UnhDRk3ssvpbG