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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