Inthe()，businessesofferservicesforwhichtheychargeafeethatisbasedonthenumberofsizeoftransactionstheyprocess.SomeoftheseserviceslendthemselveswelltooperatingontheWeb.
A.Fee-for-Transaction Revenue] Model B.Advertising-Supported] Revenue] Models C.Web] Catalogue] Revenue] Models D.Value] chain正确答案A
