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判断题802.11b是基于正交频分复用(Orthogonal Frequency Division Multiplexing,简称OFDM)技术的协议。A
对B
错
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判断题正交频分复用(OFDM)系统是一种特殊的多载波传输方案,是对多载波调制(MCM)的改进,是一种无线环境下的高速传输技术。A
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