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
How important is your cell phone? So far, no studies have proven【B1】______ that the radio signals from cell phones cause brain c
How important is your cell phone? So far, no studies have proven【B1】______ that the radio signals from cell phones cause brain c
admin
2015-09-13
21
问题
How important is your cell phone? So far, no studies have proven【B1】______ that the radio signals from cell phones cause brain cancer or other health problems. But a new study in the United States has some people wondering what to think The scientists found that holding a cell phone to your ear for at least 50 minutes 【B2】______brain cell activity. Even the scientists themselves are not sure about the【B3】______of their findings. Dr. Volkow says she would not be concerned that 50 minutes of cell phone【B4】______would harm anyone, but the research does illustrate the need to study whether or not there are【B5】______ impacts of such behaviors over several years. Her team studied 47 healthy volunteers between January and December of 2009. The volunteers had cell phones placed against both ears while the scientists made【B6】______of their brain activity. The result shows that even though the radio frequencies that are【B7】______ current cell phone technologies are very weak, they are able to activate the human brain to have an effect. Experts say people who are concerned about mobile phones can【B8】______like using a hands-free device. Dr. Giuseppe Esposito is a nuclear medicine【B9】______at Georgetown University Medical Center in Washington. He says after many years of studies, better kinds of research are still needed to【B10】______questions about cell phone safety. These studies would take years.
【B5】
选项
答案
long-lasting
解析
由空格前的are和空格后的名词impacts可知,空格处需填入一个名词或形容词。结合录音可知,答案为long-lasting,意为“长期的”。
转载请注明原文地址:https://kaotiyun.com/show/2al7777K
0
大学英语四级
相关试题推荐
A、Atouristmap.B、Anewsreport.C、Amuseumguide.D、Asciencetextbook.C选项A)Atouristmap(一张导游图),B)Anewsreport(一则新闻报道),C)A
A、Hedoesn’tlikeworkingafterdinner.B、Hedoesn’tcaremuchabouttheagenda.C、Heagreestodiscusstheagendaafterdinner.
MostAmericansconsiderthemselvesfriendlypeople.FolksinthesouthernUnitedStates,inparticular,【B1】______entertainingg
Thepointoffactoryfarmingischeapmeat,madepossiblebyconfininglargenumbersofanimalsinsmallspaces.Perhapsthegre
Thepointoffactoryfarmingischeapmeat,madepossiblebyconfininglargenumbersofanimalsinsmallspaces.Perhapsthegre
You’vebeenworkingoutregularlyforquiteawhile,butyou’renowherenearyourfitnessgoals.Sonowit’stimetobringyour【
A、Hisbackhurtduringthemeeting.B、Theproposalshouldbesentbackrightaway.C、Heneedsthewoman’ssupportinthemeeting
A、Husbandandwife.B、Salesmanandcustomer.C、Doctorandpatient.D、Employerandemployee.C
Sincewearesocialbeings,thequalityofourlivesdependsinlargemeasureonourinterpersonal(人与人之间的)relationships.Onestr
A、Thetrainingmethodsandthequalityofthetrainingstaff.B、Theperformanceofthetraineesintheprogramme.C、Theplacesw
随机试题
文化差异的衡量指标主要有【 】
超过16小时的开放性胫骨骨折的处理方法中,下列哪项是恰当的
患者,女,39岁。半年来左上后牙遇冷热痛,但无自发痛,近1月来,除冷热过敏外隐隐作痛。近1周出现自发痛,阵发加剧,夜间痛。检查发现左上第二磨牙近中龋深穿髓,探痛明显,叩痛(±)。如果患者左侧上、下颌后牙均有龋齿患牙,患者不能对患牙定位。最能确定患牙位
电梯厅内部剪力墙的连梁(不含内筒壁)最少应有几根?
如果货物之间的相对价格保持不变,即()上涨率为零。
二叉树期权定价模型建立的假设,不包括()。
《对华北记者团的讲话》(人大2013年研)
在马克思主义产生以前,唯心主义在哲学的各个领域都曾受到过致命的批判和打击,唯独在历史观方面一直处于统治地位。唯物史观的创立最终将唯心主义从它的“最后避难所”中驱逐出去,其根本的原因是唯物史观承认()
下列选项中,千兆以太网组网中不能使用的传输介质是()。
Whentoday’scollegegraduatesgettogetherforareunionsomeday,theymaydecidetodoitbycomputer.That’sbecauserightno
最新回复
(
0
)