首页
登录
职称英语
Do strong electric currents, by means of the electromagnetic fields that accompa
Do strong electric currents, by means of the electromagnetic fields that accompa
游客
2025-02-26
50
管理
问题
Do strong electric currents, by means of the electromagnetic fields that accompany them, cause cancer in people who live and work nearby? Telephone line workers, who work near such currents every day, can provide a test case. They show elevated levels of brain cancer; therefore, the hypothesis of electromagnetic causation is supported. Which of the following, if true, most seriously weakens the argument?
选项
A、Burying power lines and other measures to protect the public from such electromagnetic fields would be prohibitively expensive.
B、Telephone line workers are exposed to levels of chemical solvents high enough to cause brain cancer.
C、High exposure to strong electromagnetic fields is correlated with a slightly higher-than-normal incidence of childhood leukemia, which is a form of cancer.
D、Public health officials who found that a group of different illnesses in people living near a power substation could not reliably be attributed to its electromagnetic field were accused of covering up the facts.
E、Telephone line workers, like most people have electrical appliances at home, and most electrical appliances, when turned on, are surrounded by an electromagnetic field of some measurable level.
答案
B
解析
本题属于典型的“B,A”类型的反对。反对思路是“除了A之外有其他原因导致B”。(B)说明电话线工人接触了过量的化学溶液,而这足以导致脑癌,表明“过量的化学溶液导致脑癌”,很好地用“有他因”来反对上面的结论。(A)只是提供了一种不可行的解决方案,不能起到反对的作用;(C)谈的是另外一个对象“白血症”与“脑癌”无关;(D)什么也说明不了;(E)起到了支持作用。
转载请注明原文地址:https://tihaiku.com/zcyy/3972972.html
相关试题推荐
Dostrongelectriccurrents,bymeansoftheelectromagneticfieldsthataccompa
Thereisstrongevidencethatthecauseofmigraines(severerecurrentheadaches)
Aninventoryequalto90dayssalesisasmuchaseventhestrongestbusinesses
Risinginventories,whenunaccompaniedcorrespondinglybyincreaseinsale,can
RecentlydiscoveredfossilremainsstronglysuggestthattheAustralianegg-layi
Byinstallingspecialelectricpumps,farmers’housescouldbeheatedbythewar
Sunspots,vorticesofgasassociatedwithstrongelectromagneticactivity,arev
Ms.Rogersboughtanelectricrangeontheinstallmentplan.Thecashpriceoft
Onahighwaythereisanelectricpoleevery96feet.Ifthepolesarenumbered
[img]ct_gre5image032[/img]FieldsXandYaretobeenclosedwithfencingthatc
随机试题
Hetoldhismotherthathehadbeen______atschoolbystudents.A、detainedB、ab
TheReasonableWomanStandardA)Sincethevolatilemixo
Forthispart,youareallowed30minutestowriteashortessay.Youshouldsta
2013年二季度,我国税收月收入同比增速逐步提高,分别为7.9%,8.3%和12
质量管理体系文件由()批准发布。 A.管理者代表B.代理人C.授权
某场地分布有4m厚的淤泥质土层,其下为粉质黏土,采用石灰桩法进行地基处理,处理4
持票人对前手的追索权,自被拒绝承兑或者被拒绝付款之日起( );持票人对前手的再
根据我国现行法律规定,对下列哪些人员,人民法院在作出判决或者决定时,可以根据具体
我国固体废物管理范围中不包括液态废物。()
以下指标不是ARDS表现的是A.PaC0>45mmHg B.pH升高 C.P
最新回复
(
0
)