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题目内容
Noise suppression in phones can play an important role in making cellphone networks more efficient, since when sounds that are _____ to the meaningful signal are transmitted, precious network band width is wasted.
- Aunsuitable
- Bdetrimental
- Cirrelevant
- Dconfined
- Elimited
- Fextraneous
C,F显示答案
以上解析由 考满分老师提供。