【单选题】
WLAN的标准IEEE802.11a定义的频段范围是___
A. <6GHZ
B. 5GHZ
C. 10-66GHZ
D. <11GHZ
E. 2.4GHZ
F.
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答案
B
解析
暂无解析
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A. A
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【单选题】
( ) 37.The greatest river for navigation is ___________.
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【单选题】
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【单选题】
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