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单项选择题What speeds must be disabled in a mixed 802.11b/g WLAN to allow only 802.11g clients to connect?()

A、6, 9, 12, 18

B、1, 2, 5.5, 6

C、5.5, 6, 9, 11

D、1, 2, 5.5, 11

  • D
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