【20171125】以下对物联网的描述不正确的是( )。-问呀课堂

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[单选题]【20171125】以下对物联网的描述不正确的是( )。

A物联网即“物物相联之网”

B物联网是一种物理上独立存在的完整网络

C物联网的“网”应和通讯介质、通信拓扑结构无关

D物联网从架构上可以分为感知层、网络层和应用层

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