题目内容：
Can Loud Music Cause Hearing Impairment (损伤)? Have you ever gone to a concert and realized that your seats were right next to the booming speakers? Are you guilty＿＿＿＿(51) turning up the volume on your portable cassette or CD player to drown out the whining (哭哭啼啼) of your little brother? Sometimes it's difficult to avoid loud music or noises, but they can be bad news because loud noises can________ (52) temporary or permanent hearing loss. Extremely loud music and noises that go on for long periods of_________(53) are common causes of deafness. If a noise is so loud that you have to shout to make yourself__________(54), there is a__________(55) that the mechanism inside your ear can be injured.
Temporary hearing loss can happen after you've been __________(56) to loud noise for only 15 minutes. If you have temporary hearing loss, you won't be able to hear as________(57) as you normally can, and you may have tinnitus (耳鸣), which is a fancy word for ringing in the ears. Your ears can feel "full", too. (58), these things usually go away and your hearing soon returns to normal.
Permanent hearing loss can happen when someone is exposed to loud noise ________ (59) and over. Construction workers and people who work in factories must_________(60) ear protectors because the equipment they use can be extremely loud.
But even some lawn mowers (割草机) and power tools can permanently ________ (61) a person's ability to hear high-pitched noises and can also give 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 ears.
The best way to avoid hearing loss is to wear ear protectors when working with machinery and earplugs when going to a ________ (64). Headphones are OK to wear when you're listening to music; just be sure the volume isn't too high, and give them a rest ________(65) once in a while. A．of
B．for
C．at
D．on
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