When a router converts analog signals to digital signals， what three steps are always included in the process？（）
- A、involution
- B、encoding
- C、sampling
- D、quantization
- E、compression
- F、companding
正确答案:B,C,D
答案解析:有
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When a router converts analog signals to digital signals， what three steps are always included in the process？（）
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