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
21
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:https://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
Ofallthecomponentsofagoodnight’ssleep,dreamsseemtobeleastwith
三个臭皮匠,合成一个诸葛亮。Threecobblerswiththeirwitscombined,equalZhugeLiangthemas
[originaltext]W:Today’sgueston"ScienceUpdate"isDavidBrown.[1]Dr.Brown
The____isageneraldescriptionofthe
轻度口腔感染病人应选择的漱口液是()A.1%~4%碳酸氢钠溶液 B.1%
各种运输方式内外部的各个方面的构成和联系,就是( )。 A.运输系统
均质圆柱体重P,直径为D,置于两光滑的斜面上。设有图示方向力F作用,当圆柱不移动
社会工作中的伦理难题是指()。A.社会工作者在实践中遇到的一种在道德上难以取舍
进度计划编制中,劳动量消耗的均衡性常用不均衡系数来表示,若劳动量消耗最大值为Rm
某港口码头堆场,填土碾压密实。击实试验测得回填土的最大干密度为1.80g/cm3
最新回复
(
0
)