根据“Headphones are helpful. Many kids use them. But headphones can be harmful, too. They can cause hearing loss if the volume (音量) is too loud.”可知,耳机是很有用的,但声音过大会造成听力损伤。故选C。 (7)题详解: 开放性试题,答案不唯一,言之有理即可。参考答案为Getting away from ...
dangerous___(13)if the volume is too high and the headphones are used a lot,the noise can damage the ears.The best way to avoid hearing loss is to wear ear protectors when working withmachinery and earplugs when going to a___(14).Headphones are OK to wearwhen you're listening...
making hearing muffled. This kind of hearing loss is known as a temporary threshold shift, and many people will experience it at least once in their lifetime. In Anja’s case, the loud sounds of the concert only ...
Headphones are helpful. Many kids use them. But headphones can be harmful too. They can cause hearing loss if the volume (音量)is too loud. Studies show that one out of every ten kids in the Unite d States has some hearing loss. The cause is lou d noise.Do you know how we hear?
the noise levels similar to those of jet levels can be heard on earphones or headphones on personal music players if they are turned up loud enough.Scientists have known that temporary and (a condition that presents itself as a noise such as ringing or buzzing in the ears) can be caused ...
You can suffer hearing damage from both high frequency sounds and overly loud sounds. Frequently using headphones at a loud volume can cause permanent hearing
Headphones are helpful. Many kids use them. But headphones can be harmful,too. They can cause hearing loss i f the volume(音量) is too loud. Studies show that one out o f every ten kids in the Unite d States has some hearing loss. The cause is lou d noise.Do you know how we he...
C Headphones are helpful. Many kids use them. But headphones can be harmful, too. They can cause hearing loss if the volume(音量) is too loud. Studies show that one out of every ten kids in the Unite d States has some hearing loss. The cause is lou d noise.Do you know how we he...
him permanent tinnitus .Listening to extremely loud music over and over can also have the same effect on a person’s 62 .And using headphones on a portable cassette or CD player can be dangerous 63 if the volume is too high and the headphones are used a lot,the noise can damage the ...
Headphones are helpful. Many kids use them. But headphones can be harmful, too. They cause hearing loss if the volume (音量) is too loud. Studies show that one out of every ten kids in the United States has some hearing loss. The cause is loud noise.Do you know how we hear? There...