权威例句
Mobile phoneMobile phoneMobile phoneAlternate Air Ticket POSOn-Device PortalSkypeVringoRadial (Radio)One-Time PasswordDARIA ORESHINA MA in Sociology, PhD studentRequirements :Mobile Phone Operator1 Barrantes, R., Agüero, A., Galperin, H. & Molinari, A. (2007). Affordability of Mobile Phone Services in Latin America. Report. D...