repliche20
ritorna con repliche.htm o repliche18.htm
k1
geofoliumk1 k2
k2
geofoliumk2.ggb
foliumk1 https://youtu.be/1S0cpQngURk
foliumk2 https://youtu.be/uhih9bFx8PM
repliche21.htm
k1k1
k2