单选题
At the level of 115 decibels, permanent hearing damage can occur after just ______.
A) 15 minutes C) 100 minutes
B) 60 minutes D) 105 minutes
A、
At the level of 115 decibels, permanent hearing damage can occur after just ______.
B、
15 minutes
C、
60 minutes
D、
100 minutes
E、
105 minutes
【正确答案】
A
【答案解析】
提交答案
关闭