Headset stereos can ______. [br] At the level of 115 decibels, permanent hearing

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问题 Headset stereos can ______. [br] At the level of 115 decibels, permanent hearing damage can occur after just ______.

选项 A、15 minutes
B、60 minutes
C、100 minutes
D、105 minutes

答案 A

解析

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