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Jitter is an unwanted variation of one or more characteristics of a periodic signal in electronics and telecommunications and（）refers to call issues that cause variations in timing or time of arrival. 

单选题
2022-06-17 14:20
A、 echo
B、 jitter
C、 packet loss
D、 digitized sampling
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正确答案
B
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标签： CCDP(642-874)
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