首页
登录
职称英语
Scientists who believe cell phones are dangerous have been throwing out hypo
Scientists who believe cell phones are dangerous have been throwing out hypo
游客
2023-11-17
17
管理
问题
Scientists who believe cell phones are dangerous have been throwing out hypotheses to explain away the negative results. Maybe something about the【1】animals raised their rates of cancer or sperm problems, so【2】the exposed animals didn’t seem to be harmed. Maybe the studies should have used pulsed,【3】radiation rather than a continuous beam, the better to【4】the way we actually use mobile phones. Maybe it matters【5】the lab animals are zapped【6】in a device like a Ferris wheel or while【7】around in cages. On the other hand, if these details do【8】, maybe that in itself is significant.
Scientists who【9】claims that cell-phone radiation is causing an epidemic of brain cancer【10】that there isn’t any mechanism.【11】textbook biophysics, only radiation that has enough energy to ionize molecules—that is, knock off electrons—can【12】cancer. Cell phones don’t【13】energy great enough to ionize molecules in living cells. Their【14】is "far below the cancer energy threshold,"【15】physicist Robert Park of the University of Maryland, who often【16】junk science. But whenever he makes that【17】in his What’s New e-newsletter, he gets【18】with angry responses insisting there are other ways low-energy radiation can【19】"I don’t like cell phones and I don’t like writing about cell phones," says Park,【20】the damned issue just won’t go away. " [br]
选项
A、when
B、which
C、where
D、whether
答案
D
解析
语法题。“实验室动物是否被杀很关键”。
转载请注明原文地址:https://tihaiku.com/zcyy/3194096.html
相关试题推荐
Somepeoplebelievethatinternationalsportcreatesgoodwillbetweenthen
Somepeoplebelievethatinternationalsportcreatesgoodwillbetweenthen
Somescientistsaredubiousoftheclaimthatorganisms______withageasanin
OfficialssaywaterlevelsalongtheBrahmaputraRiverstillareatdangerousle
Since1970,millionsofenthusiasts______asubstancewhichtheybelievecanre
Hewasoneofthegreatestscientiststheworldhaseverknown,yetifIh
Hewasoneofthegreatestscientiststheworldhaseverknown,yetifIh
Hewasoneofthegreatestscientiststheworldhaseverknown,yetifIh
Hewasoneofthegreatestscientiststheworldhaseverknown,yetifIh
Hewasoneofthegreatestscientiststheworldhaseverknown,yetifIh
随机试题
AfterreadinganarticleintheHeraldaboutmemorylossanddementia,Ican
HowtoSurviveaLayoffYou’velostyourjob,butit
[originaltext]TherearethreegroupsofEnglishlearners:beginners,interm
[originaltext]M:WelcometoABCElectronics.First,letmegooverwhatwedoi
十年来,博览会极大推动了区域经济和贸易合作,为世界各地的商界带来了巨大机遇。Foradecade,theExpohasgreatlyboosted
[originaltext]W:Stan,doyouhaveaminute?M:Oh,hi,Cathy,sure.What’sup?
商业银行可以从( )维度对贷款组合进行结构分析,有效监测信用组合风险。A.行业
管理人、法定代表人或者执行事务合伙人委派代表、董事、监事、高级管理人员最近()年
中性点隔直装置运维细则中,中性点电容隔直装置机械旁路开关拒动,应检查装置()
A.36000元 B.37500元 C.45000元 D.48000元
最新回复
(
0
)