Headset stereos can ______. [br] According the experts, when headset sound reach

游客2024-07-21 41

问题 Headset stereos can ______. [br] According the experts, when headset sound reaches 110 decibcls, it can be used at most for ______.

选项 A、one hour
B、half an hour
C、two hours
D、three hours

答案 B

解析

转载请注明原文地址:http://tihaiku.com/zcyy/3687449.html

相关试题推荐

随机试题

最新回复(0)

Accordingtothepassage,whichofthefollowingisTRUE?[br]Whichofthefoll