際際滷shows by User: antonioandretta / http://www.slideshare.net/images/logo.gif 際際滷shows by User: antonioandretta / 際際滷Share feed for 際際滷shows by User: antonioandretta https://cdn.slidesharecdn.com/profile-photo-antonioandretta-48x48.jpg?cb=1523487923 principio fondamentale dell'universo: ad ogni azione corrisponde una reazione uguale e contraria.....