首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Scientists who believe cell phones are dangerous have been throwing out hypotheses to explain away the negative results. Maybe s
Scientists who believe cell phones are dangerous have been throwing out hypotheses to explain away the negative results. Maybe s
admin
2011-01-10
31
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. "
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://kaotiyun.com/show/rr1K777K
0
专业英语四级
相关试题推荐
Ahistoricalnovelmaydomorethanmirrorhistory;______futureevents.
Withoutairandwater,noneofthelivingthingsonearth______.
Innoway______fortheaccident.
Thegirlalwayssaystoherboyfriend,"Idowishyou______somuch."
WhatdoesthespeakerthinkofJohn?
Thereisnoperson______isalwaysintheright.
Itisnogood______thecoldfish.Healwayskeepsadeafeartomattersotherthanhis.
Areyouthinkingabouttryingoutapoliticalcareerbutyour【C1】______arealittlelowforapresidentialbid?Youhaveuntil
Areyouthinkingabouttryingoutapoliticalcareerbutyour【C1】______arealittlelowforapresidentialbid?Youhaveuntil
随机试题
由于订立保险合同的目的是保障被保险人对其财产或者生命、健康所享有的利益,即保险利益。所以保险利益是保险活动当事人的权利义务所指向的对象,成为保险合同的主体。()
A、药物由高浓度区域向低浓度区域扩散B、需要能量C、借助于载体使非脂溶性药物由高浓度区域向低浓度区域扩散D、小于膜孔的药物分子通过膜孔进入细胞膜E、黏附于细胞膜上的某些药物随着细胞膜向内凹陷而进入细胞内胞
患者,女,40岁。初秋患痢,症见腹痛,痢下赤白脓血,黏稠如胶冻,里急后重,口渴饮冷,舌红苔黄腻,脉滑数。治疗方剂最宜
热力学温度和摄氏温度的关系是
A.血浆胰岛素测定B.葡萄糖耐量试验C.糖化血红蛋白D.尿糖E.空腹血糖判断近2~3个月血糖控制程度的指标是
五迟所指下列哪项是错误的
下列选项中不属于工资计算所需要的原始单据的是()。
除《企业破产法》另有规定外,债权人会议的决议,由出席会议的有表决权的债权人()通过,并且其所代表的债权额占无财产担保债权总额的()以上。
贷款支付管理中的分险点主要包括()。
Togetyoufamiliarwiththenewproductswedealin,wearesendingyou,byairmail,afullsetofpamphletsforyourreference.
最新回复
(
0
)