際際滷shows by User: KarenIveth / http://www.slideshare.net/images/logo.gif 際際滷shows by User: KarenIveth / 際際滷Share feed for 際際滷shows by User: KarenIveth https://cdn.slidesharecdn.com/profile-photo-KarenIveth-48x48.jpg?cb=1523301389 estoy en proceso de saber q es retroalimentacion :)... al parecer es un proceso muuuy lento :p