151使用Gmail或Hotmail收發電子郵件,屬於下列哪一項類型雲端服務?(A)SaaS(Software as a Service)(B)PaaS(Platform as a Service)(
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151使用Gmail或Hotmail收發電子郵件,屬於下列哪一項類型雲端服務? (A)SaaS(Software as a Service) (B)PaaS(Platform as a Service) (C)IaaS(Infrastructure as a Service) (D)StaaS(Storage as a Service)