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什么是A类B类C类IP地址？他们如何划分？有什么区别？
IP地址为什么会有A类B类C类？它们是怎么分的？谁在管理这些IP地址？什么又是公网IP地址，什么又是私网IP地址？ 看这个视频吧。
弱电基础教学合辑27/63
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