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有1条经过1次转接的PCM音频电路,从发端到末端3个点的电平分别是()。(单位为dB)
- A、-14、+4、+4
- B、-14、-4、+4
- C、-14、0、+4
- D、0、-14、+4
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更多 “有1条经过1次转接的PCM音频电路,从发端到末端3个点的电平分别是()。(单位为dB)A、-14、+4、+4B、-14、-4、+4C、-14、0、+4D、0、-14、+4” 相关考题
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单选题下面哪一个是有效的IPv6地址().A
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单选题A
4,4B
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