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下面关传输介质的描述哪个是正确的？

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下面关传输介质的描述哪个是正确的？

A.2.4G的频段资源需要向无委会申请使用

B.微波炉等设备不会对WLAN系统产生干扰

C.使用光纤作为传播媒体需完成电信号和光信号之间的转换。

D.我国自主的4G技术是TD-SCDMA(时分同步码分多址)

参考答案:

答案：使用光纤作为传播媒体需完成电信号和光信号之间的转换。

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