单选题What is the maximum attainable bandwidth using an analog data modem？（）A28.8kbpsB56kbpsC128kbpsD1544kbps
单选题
What is the maximum attainable bandwidth using an analog data modem？（）
A
28.8kbps
B
56kbps
C
128kbps
D
1544kbps
参考解析
解析：
暂无解析
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