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
72
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、commit
B、emit
C、permit
D、transmit
答案
B
解析
词义辨析题。commit实施,通常搭配suicide(自杀)和crime(犯罪);emit放射;permit允许;transmit传播,广播。
转载请注明原文地址:https://tihaiku.com/zcyy/3194104.html
相关试题推荐
Manypeoplebelievethatourspecies______threatenedwithextinction.A、isB、ar
Thescientistshaveabsolutefreedomastowhatresearchtheythinkitbestto_
Whatisthispassagemainlyabout?[br][originaltext]Scientistssayshark
Whatisthispassagemainlyabout?[br][originaltext]Scientistssayshark
Whatisthispassagemainlyabout?[br][originaltext]Scientistssayshark
Spaceisadangerousplace,notonlybecauseofmeteors(流星)butalsobecaus
Spaceisadangerousplace,notonlybecauseofmeteors(流星)butalsobecaus
ThesearchforacheapalternativefuelhasledAmericanscientiststostudythe
Therearehiddenfactorswhichscientistscall"feedbackmechanisms".Noo
Therearehiddenfactorswhichscientistscall"feedbackmechanisms".Noo
随机试题
[originaltext]Whilethenicknamesofcurrenthurricanes—includingEarlan
Ananonymouspersoninachatterchambersaid,"Ibelieveinserendipity,kar
ABritishstudyfoundthatBvitaminscouldreducebrainshrinkageinolder
Careerdevelopment(general)______referstopersonaleffortsbyanemployeetol
某系统集成一级企业承接某银行的业务系统建设工作,软件开发、硬件采购、网络建设、系
下列配置默认路由的命令中,正确的是()A.[Huawei]iproute‐st
行政复议决定作出前,申请人要求撤回行政复议申请的,经说明理由,可以撤回。
在自然条件下,下列关于植物种子及其主要传播方式的对应关系,正确的有:A.红树一一
5年前,甲方出地、乙方出资合作建设一幢写字楼。甲方当时提供的土地面积为1000m
下列建设工程项目进度控制的措施中,属于技术措施的是()A.确定各类进度计划的
最新回复
(
0
)