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
Cell Phone Lets Your Secret Out Your cell phone holds secrets about you. Besides the names and【51】 that you’ve programmed in
Cell Phone Lets Your Secret Out Your cell phone holds secrets about you. Besides the names and【51】 that you’ve programmed in
admin
2011-01-02
31
问题
Cell Phone Lets Your Secret Out
Your cell phone holds secrets about you. Besides the names and【51】 that you’ve programmed into it, traces of your DNA linger on the device, according to a new study.
DNA is genetic material that【52】 in every cell. Like your fingerprint, your DNA is unique to you【53】 you have an identical twin. Scientists today routinely analyze DNA in blood, saliva, or hair left【54】 at the scene of a crime. The results often help detectives identify【55】 and their victims. Your cell phone can reveal more about you【56】 you might think.
Method J. McFadden, a scientist at McMaster University in Hamilton, Ontario, heard about a crime in which the suspect bled onto a cell phone and later dropped the【57】. This made her wonder whether traces of DNA lingered on cell phones—even when no blood was involved.【58】she and colleague Margaret Wallace of the City University of New York analyzed the flip-open phones of 10 volunteers. They used swabs to collect【59】 traces of the users from two parts of the phone: the outside, where the user holds it, and the【60】 , which is placed at the user’s ear.
The scientists scrubbed the phones using a solution made mostly【61】alcohol. The aim of washing was to remove all detectable traces of DNA. The owners got their phones【62】for another week. Then the researchers collected the phones and repeated the swabbing of each phone once more.
The scientists discovered DNA that【63】to the phone’s speaker on each of the phones. Better samples were collected from the outside of each phone, but those swabs also picked up DNA that belonged to other people who had apparently also handled the phone.【64】, DNA showed up even in swabs that were taken immediately after the phones were scrubbed. That suggests that washing won’t remove all traces of evidence from a criminal’s device. So cell phones can now be added to the【65】of clues that can clinch a crime-scene investigation.
选项
A、because
B、unless
C、although
D、still
答案
B
解析
上文的意思是:如同指纹,你的DNA是独一无二的。因此,此处必须选择unless,其他选项均不符合句义,也违背了我们对DNA的基本常识。
转载请注明原文地址:https://kaotiyun.com/show/ojLd777K
本试题收录于:
职称英语理工类A级题库职称英语分类
0
职称英语理工类A级
职称英语
相关试题推荐
Americans’Health-careSystemSmallWonder?ItissaidthatinEnglanddeathispressing,inCanadainevitableandinCalif
DiningCustomEverylandhasitsowndiningcustom,andtheUnitedStatesisnoexception.Americansfeelthatthefirstrul
Nationalforestsmakemoneyforthegovernmentthroughthesaleoftreesforlumber.
HowDidSheConquertheAmericans?African-AmericantalkshowqueenOprahWinfreyistheworld’smostpowerfulcelebrity,acc
FluShotsOrNot?ItsoundedlikeagoodideawhenNewYorkCity’smayor,RudollphGiuliani,advisedNewYorkersrecentlyto
TheBuildingofthePyramidsTheoldeststonebuildingsintheworldarethepyramids.(46)Thereareovereightyofthem
CellPhoneLetsYourSecretOutYourcellphoneholdssecretsaboutyou.Besidesthenamesand【C1】______thatyou’veprogra
Thelastfewweekshavebeenenjoyable.
Weshallkeepthemoneyinasecureplace.
Thelastfewweekshavebeenenjoyable.
随机试题
一些国家为了限制某种商品进口,而对此商品征收国内税,是因为()
照射野是指
下列关于肺性脑病的说法不正确的是
某公司承建城市主干道改造工程,其结构为二灰土底基层、水泥稳定碎石基层和沥青混凝土面层,工期要求当年6月份完成拆迁,12月底完成施工。由于城市道路施工干扰因素多,有较大的技术难度,项目部提前进行了施工技术准备工作。水泥稳定碎石基层施工时,项目部在城
关于海洋运输的特点,下列说法中()是不正确的。
材料:李老师在初中地理《日本》第二课时的教学片段:师:上一节课我们学习了日本的地理位置、农业特点,这节课我们学习日本的工业发展特点。师:请各小组按照屏幕上展示的学习任务和要求进行学习(PPT呈现):师:时间到,请各小组依次汇报。第1小组汇报:略
自1840年鸦片战争后,西方列强强迫清政府签订的不平等条约多达数十个,下列条约内容,按照时间先后顺序排列正确的是()。①扩大领事裁判权,允许美国兵船自由出人中国通商港口②中国开放广州、厦门、福州、宁波、上海五处港口③英国人可以往内
“活到老学到”体现了现代教育的()。
大山因为有脊梁,所以挺拔俊美;人因为有脊梁,所以______。新闻因为有了脊梁,才能出淤泥而不染;新闻人因为有了脊梁,才能______,稳如泰山。填入划横线部分最恰当的一项是()。
A.acquaintB.behaviorC.complyD.contraryE.disordersF.estimatedG.evenlyH.guaranteesI.humanel
最新回复
(
0
)