How many channels are defined in the IEEE 802.11b DSSS channel set？（）A、 3B、 4C、 11D、 13E、 14

How many channels are defined in the IEEE 802.11b DSSS channel set？（）

  • A、 3
  • B、 4
  • C、 11
  • D、 13
  • E、 14

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