单选题Which of the following wireless technologies can support the GREATEST distance on either 2.4GHz or 5GHz frequencies?（）A802.11aB802.11bC802.11gD802.11n
单选题
Which of the following wireless technologies can support the GREATEST distance on either 2.4GHz or 5GHz frequencies?（）
A
802.11a
B
802.11b
C
802.11g
D
802.11n
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