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题目内容双击单词支持查询和收藏哦～
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.
- A.unsuitable
- B.detrimental
- C.irrelevant
- D.confined
- E.limited
- F.extraneous
C,F显示答案
以上解析由 考满分老师提供。
