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
8
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、1.2 million.
B、1.4 million.
C、0.8 million.
D、2 million.
答案
C
解析
掌握数字信息,并能够作简单推算。
转载请注明原文地址:https://tihaiku.com/zcyy/3303053.html
相关试题推荐
Swedishscientistscenteredtheresearchon85peoplewhoownbordercolliesor
ManyAmericanshopingtostayhealthysetadailygoalof10,000steps,orabout
Scientistsarestillworkingtowardalong-soughtgoal—abloodtesttoidentify
Theresearchershopethattheirhealthcareprogramwillbepopularized.A、正确B、错
30%ofpatientsinhomehealthcarehavemalnutritionissues.A、正确B、错误B原文说:The
Goodnutritionmaybekeytogettingpatients’healthback.[originaltext]Wh
[originaltext]Thesearchforoneoflife’sgreatestgoals,happiness,iswh
[originaltext]Whichismorepopular—coffeeortea?IfyouareonTeamC
[originaltext]Areyouacatpersonoradogperson?Peoplearoundtheworld
Withtheadvancementofscience,scientistsareabletofindoutthepathsofst
随机试题
Therearetwotypesof’peopleintheworld.Althoughtheyhave【B1】______deg
按机动车辆损失险和第三者责任险条款规定,对()造成保险车辆损失或第三者赔偿责
()行为属于欺诈消费者的行为。A.销售“处理品”而谎称是正品的 B.故意短
某一级公路工程开工里程10公里,建设单位通过公开招标分别与甲施工单位和某监理单位
A
建的动力平衡,产生向前的动力的肌肉包括A.颞肌、咬肌、翼内肌、舌肌 B.口轮匝
杜威以反赫尔巴特教育理论出现,提出了“儿童中心,经验中心和活动中心”。( )
下列关于生物电子等排原理的说法,错误的是()A.在药物结构中可以通过电子
张先生,20岁。急性扁桃体炎,医嘱为青霉素皮试。配制青霉素皮试液时,其皮内注射剂
和意志坚韧性相反的品质是()。 (A)受暗示性(B)优柔寡断 (C
最新回复
(
0
)