120.下列何者不是雲端運算的基本服務模型(Serv ice Model)？
(A)Software as a Service (SaaS)
(B)Platform as a Service (PaaS)
(C)Information as a Service (IaaS)
(D)Infrastructure as a Service (IaaS) 。

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統計： A(0), B(1), C(6), D(0), E(0) #2522342