眼图是一种估计和观察系统性能的实验手段。它通过在示波器上观察接收到的信号可以看出两个主要物理量对信号的影响程度,这两个物理量是()
A.干扰和失真
B.畸变和干扰
C.噪声和回路衰减
D.码间串扰和噪声
正确答案是D
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