首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
We’ve become a rather germ-phobic (恐惧症) society, what with our antibacterial soaps, hand sanitizers, automatic water faucets (水龙
We’ve become a rather germ-phobic (恐惧症) society, what with our antibacterial soaps, hand sanitizers, automatic water faucets (水龙
admin
2012-08-05
70
问题
We’ve become a rather germ-phobic (恐惧症) society, what with our antibacterial soaps, hand sanitizers, automatic water faucets (水龙头) and self-flushing toilets—all of which are supposed to reduce our contact with potential disease-causing bugs. But it turns out that at least one pathogen-fighting (抵抗病 原体的) strategy may actually be exposing us to more germs, rather than fewer.
Researchers at Johns Hopkins Hospital conducted an eye-opening study on the bacterial growth within two different kinds of taps-hands-free, automatic faucets activated by an electronic eye, and the old-fashioned manual type that users have to turn in order to start the flow of water. About 50% of the water samples from the electronic faucets tested positive for some bacteria, while only 15% of the samples from the manual faucets did. Yes, the automatic faucets harbored more bugs than the manual ones, but that doesn’t mean they’d make you sick. The water samples were taken from faucets located all over the hospital, including patient rooms, and no patients reported infections from the water.
Still, in a hospital setting, the findings could be cause for alarm. That’s because hospitalized patients are more likely to have compromised immune systems, whether they are being treated for cancer or undergoing an organ transplant. That’s why Hopkins officials decided to play it safe and go back to manual faucets in a new building under construction on campus that would include patient rooms. "The electronic faucets are in the process of being removed and the plan is to remove them from the existing hospital as well," says Sydnor, a fellow in infectious diseases at Hopkins.
Why are the automatic faucets so bug-friendly? Gregory Bova, senior engineer at the hospital, says it’s the plumbing. While the plumbing for manual faucets is relatively straightforward, with a pipe each for hot and cold water feeding into the faucet, hands-free models are more complex. They include various valves (阀门), screens and filters designed to prevent backflow of hot or cold water to the wrong pipe, and all that machinery provides the perfect nesting ground for bacteria and other pathogens.
Sydnor and Bova both acknowledge that the results surprised them. They never expected that the hands-free faucets would contain more bacteria than the manual ones. In fact, their study started out as a way to determine how often they should program the automatic faucets to run in order to flush out colonies in case they weren’t used often enough. It turns out the faucets were never that idle, but that they were a fertile location for bacteria to take hold. Still, the amount of bacterial growth the researchers found wasn’t enough for them to avoid electronic faucets in public restrooms: in the public, non-patient care areas of the hospital, Sydnor and Bova say they’re keeping the automatic model.
What did the findings make Hopkins officials do about the faucets in the new building?
选项
A、They planned to use manual faucets in the new building.
B、They decided to remove most manual faucets from it.
C、They wanted to use automatic faucets mainly in patient rooms.
D、They intended to install both automatic faucets and manual ones.
答案
A
解析
细节辨认题。第三段主要说明研究结果影响了霍普金斯医院领导们安装水龙头的决策。定位句提到,为了稳妥起见,他们决定把老式水龙头重新应用到一座正在建设的包括病房的新园区,因此答案为A)。
转载请注明原文地址:https://www.kaotiyun.com/show/11b7777K
0
大学英语六级
相关试题推荐
PartⅡReadingComprehension(SkimmingandScanning)Directions:Inthispart,youwillhave15minutestogooverthepassageq
Directions:Forthispart,youareallowed30minutestowriteashortessayentitledOnOver-packaging.Youshouldwriteatlea
Directions:Forthispart,youareallowed30minutestowritealettertoconsoleyourfriendwhorecentlyfailedinTOEFL.You
A、Wheretheyshouldmove.B、Howtonegotiatewiththelandlord.C、Howtofighttheincrease.D、Whethertoacceptanincreasein
A、Takeyourseatbeforeothers.B、Talkaboutsomediningcustomsinyourcountries.C、Receiveyourmeal.D、Begintoeatheartily
A、Fromadrugdealer.B、Withoutthedoctor’sprescription.C、Legallyfromthedoctor.D、Fromthewoman.C女士问男士是怎样得到止痛药的,是否有医生的处方
A、Whattheywilldothatafternoon.B、Workingonanassignmenttogether.C、Howtheywillspendtheweekend.D、Returningbooksto
Contrarytothepredictionofsomefinancialexperts,______(经济正在萎缩而不是在增长).
Talktoanyparentofastudentwhotookanadventurousgapyear(ayearbetweenschoolanduniversitywhensomestudentsearnmo
Thereislittle______offoreignnewsinthenewspaper.ForeignersarenotSatisfiedwithit.
随机试题
为女患者行导尿术时,操作正确的是
若患者胃酸中检出幽门螺杆菌则应选择的联合用药是
阿尔茨海默病的早期核心症状是
根据投资体制改革规定,国家对我国企业到境外投资资源开发类和大额用汇项目实行()管理。
下列地下工程应采用三级防水等级的是()。
承包人应按合同约定进行材料、工程设备和工程的试验和检验,并为监理人的质量检查提供必要的()。
统计分组是统计资料整理中常用的方法,它能够区分()。
做到党对公安工作的绝对领导,必须坚持()。
Inwinterdrivershavetroublestoppingtheircarsfrom__________onicyroads.
Competitionmakeslosersaswellaswinners.Thisfactmakesasimpleruleforjudgingwhenitisusefultosocietyandwhenit
最新回复
(
0
)