問題詳情
52.ADSL是家庭计算机用户接入互联网的常用技术之一，下面有关叙述中错误的是
(A)上网时可同时接听和拨打电话
(B)数据下传速率高于上传速率
(C)数据下传速率可达100Mbps
(D)必须安装ADSL MODEM和以太网卡
(A)上网时可同时接听和拨打电话
(B)数据下传速率高于上传速率
(C)数据下传速率可达100Mbps
(D)必须安装ADSL MODEM和以太网卡
參考答案
答案：C
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)
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