Perhapsyouhavehearda的精选

问题详情：PerhapsyouhaveheardalotabouttheInternet,butwhatisit,doyouknow?TheInternetisanetwork.Itusesthetelephonetojoinmillionsofcomputerstogetheraroundtheworld.Maybethatdoesn’tsoundveryinteresting.Butw...