首页
登录
职称英语
[originaltext] Some people’s ears produce wax like busy little bees. This ca
[originaltext] Some people’s ears produce wax like busy little bees. This ca
游客
2023-08-18
16
管理
问题
Some people’s ears produce wax like busy little bees. This can be a problem even though ear wax appears to serve an important purpose. It protects and cleans the ear. It traps dirt and other matter, and it keeps insects out. Doctors think earwax might also help protect against infections. And the waxy oil keeps ears from getting too dry. So earwax is good. It even has a medical name: cerumen. And there are two kinds. Most people of European or African ancestry have the "wet" kind: thick and sticky. East Asians commonly have "dry" earwax.
But you can have too much of a good thing.
The glands in the ear canal that produce the wax make too much in some people. Earwax is normally expelled: it falls out of the ear or gets washed away. But extra wax can harden and form a blockage that interferes with sound waves and reduces hearing.
People can also cause a blockage when they try to clean out their ears, but only push the wax deeper inside. Earwax removal is sometimes necessary. But you have to use a safe method or you could do a lot of damage.
Experts at the National Institutes of Health, NIH, suggest some ways to treat excessive earwax yourself. The wax can be softened with mineral oil, glycerin or ear drops. Hydrogen peroxide or carbamide peroxide may also help.
Another way to remove wax is known as irrigation. With the head upright, take hold of the outer part of the ear. Gently pull upward to straighten the ear canal. Use a syringe device to gently direct water a-gainst the wall of the ear canal. Then turn the head to the side to let the water out.
The experts at NIH say you may have to repeat this process a few times. Use water that is body temperature. If the water is cooler or warmer, it could make you feel dizzy. Never try irrigation if the eardrum is broken. It could lead to infection and other problems.
After the earwax is gone, gently dry the ear. But if irrigation fails, the best thing to do is to go to a health care provider for professional assistance.
You should never put a cotton swab or other object into the ear canal. But you can use a swab or cloth to clean the outer part of the ear. Experts agree with the old saying that you should never put anything smaller than your elbow in your ear.
19 What is the function of earwax?
20 What can be used to remove earwax according to experts in NIH?
21 What do we learn about irrigation?
选项
A、Water is poured into the ear.
B、It is the safest method of all.
C、Cold water should be used.
D、It can be repeated several times.
答案
D
解析
录音提到,NIH的专家说使用冲洗法清除耳垢有时可能需要重复好几次,因此选D项。
转载请注明原文地址:https://tihaiku.com/zcyy/2935908.html
相关试题推荐
[originaltext](23)Morethanhalfof500Chinesecitiesfailedtomeetnational
[originaltext]Today’slecturewillconcerntheterritoryananimalclaims.Firs
[originaltext]Today’slecturewillconcerntheterritoryananimalclaims.Firs
[originaltext]Investigatorsweretestingtheeffectsofdifferentcoloredwalls
[originaltext]Investigatorsweretestingtheeffectsofdifferentcoloredwalls
[originaltext]M:Excusememadam.Wouldyoumindlettingmetakealookinyour
[originaltext]M:Youlikelivinginthecity,don’tyou?W:Oh,Iloveit.It’s
[originaltext]M:Youlikelivinginthecity,don’tyou?W:Oh,Iloveit.It’s
[originaltext]M:Hello.I’mcallingtoseeifthesummerpositionyouadvertise
[originaltext]M:Hello.I’mcallingtoseeifthesummerpositionyouadvertise
随机试题
【B1】[br]【B8】A、flatB、straightC、verticalD、horizontalC从while一词可知,所填词与前面的slopi
[originaltext]Nowadaystherearemoreandmorewaysofgoingonholiday.Mo
配股是指股份有限公司已经上市后,向原有股东配售股票的再融资方式。上市公司向原有股
经纪人名称中的行业应当表述为“经纪”字样:经纪人的经营范围应当明确()A.经纪方
关于脐动脉血流A/B比值,哪项是错误的A.A/B比值反映胎盘阻力,作为测量胎儿缺
在八脉交会穴中,通任脉的是( )。A.足临泣 B.公孙 C.后溪 D.照
完整的药品质量概念不包括A.直接接触药品的包装材料,标签、说明书的质量 B.药
张力性气胸主要的病理生理变化是A:纵隔向健侧移位 B:纵隔扑动 C:胸壁反常
社区警务战略的工作目标是努力实现( )A.发案少 B.秩序好 C.社会稳定
(2019年真题)根据民事法律制度的规定,下列选项中,属于诉讼时效中断事由的有(
最新回复
(
0
)