【单选题】【消耗次数：1】
下列哪种连接方式采用上、下行不对称的高速数据调制技术（）。
①
ISDN
②
Cable Modem
③
ADSL
④
UML
参考答案：
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【单选题】
借助于( )可实现无线网络中的Internet连接共享，实现ADSL/Cable Modem和小区宽带的无线共享接入。
①
无线路由器
②
天线
③
无线网卡
④
AP
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