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问题详情

The principle of converting analog signals to digital signals became popular with the introduction of ().

A、pulse code modulation

B、packet switching technology

C、quadrature amplitude modulation

D、stored-program control

时间：2021-09-01 21:07 关键词：联大河南师范大学计算机科学与技术专业英语

答案解析

A

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