tarea 28

https://docs.google.com/presentation/d/1hBx2T4jJckQw7zoviJlXDMQEPLNPoD-INk9v7g4Ab0I/pub?start=false&loop=false&delayms=3000

tarea 25

https://drive.google.com/open?id=1E5VxABVOrizPQqoWZazXbMZD3jNv5YHwK6YL7sb3y8w

tarea 22

https://drive.google.com/open?id=0B89qyhW353h5NkhQc0Nzb2hub00

tarea 20

https://drive.google.com/open?id=0B89qyhW353h5b3Azem1vay1Ga2s

tarea 19

https://drive.google.com/open?id=0B89qyhW353h5YXRSZ1kzTF92aDA