题目内容 (请给出正确答案)
提问人:网友l******8 发布时间:2022年4月17日 00:11
[单项选择题]

一台兼容机装有调制解调器,此调制解调器可以和远端的调制解调器连通,但是不能发送文件,排除病毒造成的影响,并且调制解调器本身无故障,故障最可能发生在()

A.多功能卡

B.通信参数设置

C.串口

D.主板

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