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
2024-01-13
17
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/3358410.html
相关试题推荐
Themind-successconnectionisstrong,andmanyobstaclestooursuccessare
Themind-successconnectionisstrong,andmanyobstaclestooursuccessare
Themind-successconnectionisstrong,andmanyobstaclestooursuccessare
Themind-successconnectionisstrong,andmanyobstaclestooursuccessare
Themind-successconnectionisstrong,andmanyobstaclestooursuccessare
Themind-successconnectionisstrong,andmanyobstaclestooursuccessare
Themind-successconnectionisstrong,andmanyobstaclestooursuccessare
Themind-successconnectionisstrong,andmanyobstaclestooursuccessare
Themind-successconnectionisstrong,andmanyobstaclestooursuccessare
Themind-successconnectionisstrong,andmanyobstaclestooursuccessare
随机试题
AlthoughtherearemanyskillfulBraillereaders,thousandsofotherblindp
Thenowextinctpassengerpigeonhasthedubioushonorofbeingthelastspe
Riseofan"IraqGeneration"inEuropeWhilethemediapubl
[originaltext]W:Well,isithardertobeacomedianorascientist?M:Ithink
进程P1、P2、P3、P4、P5和P6的前趋图如下所示: 若用PV操作控制
下列关于刀晕的处理,错误的是( )。A.刀晕轻症,只要扶持患者安静平卧,室温保
对一昏迷患者,为鉴别高渗性非酮症糖尿病昏迷和低血糖休克,最有效的试验是( )。
A.必须持有国务院药品监督管理部门发给的《进口准许证》 B.国务院有权限制或者
直接融资区别于间接融资在于()。A.融资的主动权掌握在金融中介手中 B.金
突发事件发生后,应当及时向毗邻省、自治区、直辖市人民政府卫生行政部门通报的机构是
最新回复
(
0
)