问题
单项选择题
The function of （72） is to convert information from one physical representation to digital electrical signals.
A．I/O devices
B．disk
C．memory
D．CPU
答案
参考答案：A
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The function of （72） is to convert information from one physical representation to digital electrical signals.
A．I/O devices
B．disk
C．memory
D．CPU
参考答案：A
