单选

●网络接口卡的基本功能包括：数据转换、通信服务和 (12) 。
(12)

A．数据传输 &n
bsp; B．数据缓存
C．数据服务
D．数据共享

试题出自试卷《2011年网络管理员考试考前密卷（一）-上午试题》

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●网络接口卡的基本功能包括：数据转换、通信服务和 (12) 。(12)

●网络接口卡的基本功能包括：数据转换、通信服务和 (12) 。
(12)