I'd like to open an account persuasive research essays on single parenting From a marketing perspective, Verizon Wireless still owns the 'best network' message. AT&T is promoting the speed of its LTE network; we'll see how T-Mobile compares, but regardless, consumers see T-Mobile as a challenger brand, not the leader, Greengart said. 必須 2000文字以内 [bbs:youtube:(Youtubeの動画ID)]と書くとYoutubeの動画が貼れます。(例:[bbs:youtube:OQThUAQ0UN0])