Customerloyalty(忠誠)isabigpartinbusiness.Nowonder,then,t...
問題詳情：Customerloyalty(忠誠)isabigpartinbusiness.Nowonder,then,thatwithnewtechnology,membershipcardsdesignedtokeepcustomersandencouragerepeatbuyinghaveexplodedaroundtheworldinrecentyears.IntheUnitedS...