Because noises modulate radiofrequency, radio stations use a band of frequencies to prevent interference with other stations.

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问题 Because noises modulate radiofrequency, radio stations use a band of frequencies to prevent interference with other stations.

选项 A、govern
B、adapt
C、temper
D、renovate

答案A

解析 modulate调整,控制;使变调。govern统治,管理;影响。adapt使适应。temper使缓和,使温和。renovate更新;改善。
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