问题
单项选择题
The most widely used LAN system is ______ which adopts a form of access known as CSMA-CD．
A．Ethemet
B．ATM
C．FDDI
D．Wireless
答案
参考答案：A
解析：
使用最为广泛的局域网是采用CSMA.CD协议的以太网。
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The most widely used LAN system is ______ which adopts a form of access known as CSMA-CD．
A．Ethemet
B．ATM
C．FDDI
D．Wireless
参考答案：A
解析：
使用最为广泛的局域网是采用CSMA.CD协议的以太网。