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
36
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、instant
B、long
C、on-off
D、short
答案
C
解析
上下文题。由后面的“radiation rather than a continuous beam”可知此处的含义是“非连续的”。
转载请注明原文地址:https://tihaiku.com/zcyy/3194094.html
相关试题推荐
Itisgenerallybelievedthatthegreatestdamageofoldageisthelossof
Itisgenerallybelievedthatthegreatestdamageofoldageisthelossof
Americansbelievetimeisalimitedresource;theytrytoconserveandmana
Americansbelievetimeisalimitedresource;theytrytoconserveandmana
Americansbelievetimeisalimitedresource;theytrytoconserveandmana
Americansbelievetimeisalimitedresource;theytrytoconserveandmana
Americansbelievetimeisalimitedresource;theytrytoconserveandmana
Americansbelievetimeisalimitedresource;theytrytoconserveandmana
Americansbelievetimeisalimitedresource;theytrytoconserveandmana
Americansbelievetimeisalimitedresource;theytrytoconserveandmana
随机试题
Todaywe’regoingtodiscussthe【L1】______oftheworld’spopulation,whichi
如果“义”代表一种伦理的人生态度,“利”代表一种功利的人生态度,那么,我所说的“情”便代表一种审美的人生态度。它主张率性而行,适情而止,每个人都保持自己
BritishCuisine:TheBestofOldandNewBritishcuisine
论述卫生机构支出管理的原则和要求。
图示在倾角为α的光滑斜面上置一弹性系数为k的弹簧,一质量为m的物块沿斜面下滑s距
药品流通行业的政府管理部门是A.国家工商行政管理总局B.国家发展与改革委员会C.
女,25岁,胃痛严重,食欲不振。胃镜检查发现胃部和十二指肠球部溃疡,怀疑为幽门螺
A.处方审核 B.安全用药指导 C.四查十对 D.不得调剂 E.拒绝调剂
某男,71岁,患慢性支气管炎多年,形体消瘦,经常干咳少痰,痰中血丝,伴有五心烦热
下列不能用χ检验的是A.成组设计的两样本频率比较 B.配对设计的两样本频率比较
最新回复
(
0
)