首页
登录
职称英语
Schools looking to ban cell phones may have a new excuse: a growing number of
Schools looking to ban cell phones may have a new excuse: a growing number of
游客
2025-03-30
22
管理
问题
Schools looking to ban cell phones may have a new excuse: a growing number of people are developing an allergy to metal in the devices. We all know that food allergies are on the rise—a study last year showed the rate at 1 per 70 children, compared with 1 in 250 in the 1970s. But at last month’s meeting of the American College of Allergy, Asthma & Immunology, allergists reported that many substances that once seemed innocuous (无害的) are now leading to allergic reactions, too.
Allergies can develop when young bodies come into contact with a new substance, and an increasing number of kids have early exposure to tech tools and "adult" products that can lead to a lifetime of reactions. For instance, the nickel hardware often used on phone trim and faceplates can lead to red, itchy skin where the phone is pressed against the face of someone who developed a nickel allergy at a young age. It’s especially problematic for women, says Luz Fonacier, an allergist who attended the conference. Young girls are often first exposed to nickel when they get ears pierced, and therefore are more likely to develop sensitivity to the metal that can cause allergic reactions later on.
Temporary tattoos could be another allergy trigger. They share a pigment used in hair dyes, which can lead to problems down the line. "You might have kids developing the sensitivity now, and then finding out only when they’re much older and decide to dye their hair, then have an attack, " says Fonacier.
Foods that were once considered low risk, like pumpkin, are now causing some allergic reactions, too.
So what’s behind all these newfangled allergens (过敏源) ? Some researchers believe that as humans live in cleaner, safer and more disease-free environments, the immune system — given less to do thanks to antibiotics—turns on substances once considered safe. Others note that children are being exposed to more and more new foods and foreign substances at earlier ages, which could up the chances of developing sensitivity. To be safe, Fonacier recommends Ihat children avoid piercing until after age 10. And it’s all just another reason to keep those cell phones and temporary tattoos away from young hands. [br] It is believed that in cleaner and safer environments the immune system will
选项
A、not work because of the disease factors
B、rely on antibiotics
C、attack substances once considered safe
D、function more efficiently than in the ordinary environments
答案
C
解析
根据最后一段中的“…as humans live in cleaner, safer and more disease-free environments, the immune system--given less to do thanks to antibiotics--turns on substances once considered safe.”可知,当人类生活在更干净、更安全以及更不受疾病侵扰的环境中时(而抗生素的使用使得人体免疫系统要做的很少),人体的免疫系统就会开始攻击一些曾经被认为是安全的物质。据此可知,免疫系统会攻击曾被认为是安全的物质,C项正确。
转载请注明原文地址:http://tihaiku.com/zcyy/4018892.html
相关试题推荐
Heislookingforajobthatwillgivehimgreater______forcareerdevelopment.A
Readthefollowingpassagecarefullyandthenparaphrasethenumberedandun
Readthefollowingpassagecarefullyandthenparaphrasethenumberedandun
It’softenamistaketo______appearance;thatpoor-lookingindividualisanythin
Thenumberofstay-at-homefathersreachedarecordhighlastyear,newfigures
Everyyearanumberofstudentsgraduatefromtheschoolwhichwill______newstu
【T1】Themainimpressiongrowingoutoftwelveyearsonthefacultyof-amedi
【T1】Themainimpressiongrowingoutoftwelveyearsonthefacultyof-amedi
Thesurveyshowedthat______numbersof15-year-oldswerealreadysmokingtwenty
Readthefollowingpassagecarefullyandthenparaphrasethenumberedandun
随机试题
AnswerthefollowingquestionsontheMoulexironusingNOMORETHANTHREEWORDS
NewHope,OldFearsBonnieKrull,54,hadalreadyha
某甲级监理公司通过投标承担了某高速公路的一个监理合同段的施工全过程的监理工作,并
在软件开发过程中,常采用图形表示相关的信息,()不用于表示软件模块的执行过程A
某公司欲开发一个智能机器人系统,在架构设计阶段,公司的架构师识别出3个核心质量属
按照我国《民事诉讼法》,需要保全证据的情况有下列的()。A、证据有灭失的
月经过多是指月经量大于A.40ml B.50ml C.60ml D.70m
依据《海商法》的规定,下列关于承运人对集装箱装运的货物的责任期间的謎JP个是正确
"扳机点"的特点不包括A.三叉神经分支区域内固定而局限的小块皮肤或黏膜 B.对
解剖式印模是在承托义齿的软硬组织处于A.静止状态下取得的印模,为有压力印模,用稠
最新回复
(
0
)