首页
登录
职称英语
[originaltext]Italian scientists have raised new health concerns about the safe
[originaltext]Italian scientists have raised new health concerns about the safe
游客
2023-12-25
12
管理
问题
Italian scientists have raised new health concerns about the safety of using mobile phones, with research showing radio waves from the handsets makes cancerous cells grow more aggressively. When Fiorenzo Marinelli and his colleagues at the National Research Council in Bologna exposed leukemia cells in the laboratory to 48 hours of continuous radio waves they initially killed the cancer cells but then made the surviving tumor cells replicate more rapidly.
We don’t know what the effects would be on healthy human cells, Marinelli told New Scientist magazine. In the Italian study, after 24 hours 20 percent more leukemia cells died than healthy cells but longer exposure to the radio waves triggered genes in the surviving cancer cells to divide aggressively.
The results of the study do not show any direct threat to human health but they support the belief of some scientists who say radiation can damage DNA and destroy the cell repair system, thus making tumors more deadly. But animal studies, including recent research by Australian scientists at the Institute of Medical and Veterinary Science in Adelaide, have shown that radiation from mobile phones does not trigger the growth of tumors.
The WHO (i.e., The World Health Organization) has called for more research into the potential health hazards of mobile phones and has urged people to limit their use of them. A British government inquiry, which concluded that there was no evidence that mobile phones are a danger to health, has advised parents to discourage their children, whose brains are still developing, from using them excessively.
选项
A、The number of healthy cells will keep declining as more and more of them die.
B、The number of healthy cells will initially drop before recovering rapidly.
C、The number of healthy cells will be on steady increase throughout the process.
D、The scientists have not yet arrived at any conclusion on this issue.
答案
D
解析
注意掌握重要人物的引语部分,该部分往往是包含重要的细节信息。
转载请注明原文地址:https://tihaiku.com/zcyy/3303054.html
相关试题推荐
Swimming,bicycling,andarmcrankingwillprovidehealthbenefitsaslongasth
ManyAmericanshopingtostayhealthysetadailygoalof10,000steps,orabout
Scientistsarestillworkingtowardalong-soughtgoal—abloodtesttoidentify
McCombowesherimprovedhealthtoherhomehealthnurseandafocusonnutritio
[originaltext]Whichismorepopular—coffeeortea?IfyouareonTeamC
[originaltext]Areyouacatpersonoradogperson?Peoplearoundtheworld
[originaltext]Arecentstudysuggeststhatapoor-qualitydietmayincrease
Thescientistscarriedouttheresearchbyusingbloodsamplesandsalivasample
Alargestudysuggeststhatthereisagenethatmakespeoplegay.[originaltext
Withtheadvancementofscience,scientistsareabletofindoutthepathsofst
随机试题
TheMessagesinDistanceI.Peoplefromdif
Whatconclusioncanwedrawfromthenews?[originaltext]Moscow—Russia’stoparm
Withthesub-tropicalclimate,HongKonghasanannualaveragetemperatureofar
[originaltext]M:Hello.I’dliketoopenabankaccount.W:(19)Whattypeofacc
把原稿放在校样边上,先看原稿再看校样的校对操作方式是( )。A.点校 B.连
项目成本失控原因不包括()A.合同管理 B.思想方面 C.组织方面 D.
在某一测量问卷中有这样一道题“擅长说服,善于赢得支持”。其选项为“A.精通;B.
与抗组胺药联用,不能减少西药的用量和嗜睡、口渴等不良反应的是A.小青龙汤 B.
当被保险人是( )时,投保以死亡为给付保险金条件的保险,投保人应是被保险人的父
估算设备工器具购置费时,国产标准设备运杂费的构成包括( )。A.交货地点至工地
最新回复
(
0
)