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
55
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、work
B、matter
C、exist
D、harm
答案
B
解析
词义辨析题和上下文题。“如果这些细节的确重要,也许本身就很有意义”。
转载请注明原文地址:http://tihaiku.com/zcyy/3194099.html
相关试题推荐
Therearehiddenfactorswhichscientistscall"feedbackmechanisms".Noo
Therearehiddenfactorswhichscientistscall"feedbackmechanisms".Noo
Therearehiddenfactorswhichscientistscall"feedbackmechanisms".Noo
Therearehiddenfactorswhichscientistscall"feedbackmechanisms".Noo
Therearehiddenfactorswhichscientistscall"feedbackmechanisms".Noo
Therearehiddenfactorswhichscientistscall"feedbackmechanisms".Noo
Therearehiddenfactorswhichscientistscall"feedbackmechanisms".Noo
Therearehiddenfactorswhichscientistscall"feedbackmechanisms".Noo
Therearehiddenfactorswhichscientistscall"feedbackmechanisms".Noo
Therearehiddenfactorswhichscientistscall"feedbackmechanisms".Noo
随机试题
PreparingforComputerDisastersSummaryA)Whenhomeofficecomp
DidGrandmaseemforgetfulattheholidaypartieslastmonth?Itcouldbeti
BarackandMichelleObamaunderstandtheheavyburdenofstudentloandebt.
工程建设项目,特别是市政工程建设项目具有建设规模大、()等特点。这一特点,决定
关于“信息化”的描述,不正确的是:()。A.信息化的手段是基于现代信息技
A.痰饮 B.伏饮 C.悬饮 D.溢饮 E.,支饮水饮流溢于四肢,称为
端子箱及检修电源箱设备出厂铭牌齐全、清晰可识别,箱体正门应具有()功能。自动关
简述现代企业人力资源管理各个历史发展阶段的特点。
女性,30岁。左腰部撞伤3小时。患者诉左侧腰痛,有压痛,未及肿块.生命体征稳定。
教育的根本任务是培养人。培养什么样的人,特别是培养出来的人应当具有什么样的政治方
最新回复
(
0
)