单项选择题
A.越高、越大 B.越高、越小 C.越低、越大 D.越低、越小
A.Association request/response B.Data C.RTS,CTS,ACK D.Authentication request/response E.Probe request/response F.Beacon
A.管理帧 B.监控帧 C.控制帧 D.数据帧
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