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 Secrets Out Your cell phone holds secrets about you. Besides the names and numbers that you’ ve program
Cell Phone Lets Your Secrets Out Your cell phone holds secrets about you. Besides the names and numbers that you’ ve program
admin
2016-08-16
55
问题
Cell Phone Lets Your Secrets Out
Your cell phone holds secrets about you. Besides the names and numbers that you’ ve programmed into it,【C1】______of your DNA linger(遗留)on the device, according to a new study.
DNA is genetic(遗传的)material【C2】______appears in every cell. Like your fingerprint, your DNA is【C3】______to you—unless you have an identical twin. Scientists today analyze DNA in blood, saliva(唾液), or hair left【C4】______at the scene of a crime. The results often help detectives identify【C5】______and their victims. Your cell phone can reveal more about you【C6】______you might think.
Meghan 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【C7】______. This made her wonder whether traces of DNA lingered on cell phones—even when no blood was【C8】______. She and colleague Margaret Wallace of the City University of NewYork analyzed the flip-open phones(翻盖手机)of 10 volunteers. They used swabs(要签)to collect【C9】______ traces of the users from two parts of the phone;the outside, where the user【C10】______it, and the speaker,which is placed at the user’ s ear.
The scientists cleaned the phones using a solution made mostly【C11】______alcohol. The aim of washing was to remove all detectable traces of DNA. The owners got their phones back for another week. Then the researchers【C12】______the phones and cleaned each phone once more.
The scientists discovered DNA that【C13】______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【C14】______the phone.
Surprisingly, 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【C15】______from a criminal’ s device. So cell phones can now be added to the list of clues that can clinch(确定)a crime-scene investigation.
【C12】
选项
A、collected
B、answered
C、returned
D、used
答案
A
解析
句意:接着,研究者又把手机收回来,重复了用药签采取每部手机遗留微量DNA的步骤。collect意为“收集”;answer意为“回答”;return意为“返回”;use意为“利用,使用”。
转载请注明原文地址:https://kaotiyun.com/show/gmGd777K
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
ANewFindingBritishcancerresearchershavefoundthatchildhoodleukaemiaiscausedbyaninfectionandclustersofcase
AncientWaterFromAfarItstreakedacrosstheskyonawarmMarcheveninglastyear,thencrashedintoastreetinthesma
OnBritishNewspapersBesidesthedailynewspapers,thereareanumberofSundaynewspapersinBritain.Manyofthemarecon
ManandComputerWhatmakespeopledifferentfromcomputerprograms?Whatisthemissingelementthatourtheoriesdon’tyet
Sinceancienttimespeoplehavefoundvariouswaystopreservemeat
CarefulobservationsandsystematicstudiesofsunspotsSunspotsarecoolerthantherestofthesun’ssurfacebecause
TheHyper-XbroketherecordbecauseWhatdoesWernerJ,A.DahmsayabouttheHyper-Xtestflight?
Theresearchershavejustcompletedastudyofdrivingsituations.
FalseFearofBigFishManypeoplebelievesharks(鲨鱼)aredangerousandwillalwaystrytohurtorevenkillhumans.(46).As
AStudyofSoundBHighwayPoliceCWorkingPrinciplesDEarlyUseof"Radar"EUsefulToolsFDiscoverybyChance*
随机试题
学校及其他教育机构领导体制
当今世界格局发展的趋势是()
患者女,17岁,头痛、咳嗽伴发热1周来诊,查体:T38.0℃,咽赤,右肺背侧下部可闻及小水泡音。患者又出现鼓膜炎、结膜炎,此外,还可能出现下列哪些病症
为了维持药物的疗效,应该
A.热邪B.风邪C.湿邪D.寒邪E.燥邪
城市污水一级处理工艺中采用的构筑物是()。
可以预防沥青混凝土路面横向接缝病害的措施是()。
某企业于2016年成立,当年发生经济业务如下:(1)领取了营业执照、房产证、土地使用证、商标注册证、银行开户许可证各一件,资金账簿记载实收资本1350万元,新启用其他营业账簿8本。(2)2月末将一间门面房租给某商户,签订财产租赁合同,租期2年,合同记载
Theonlysoundsarebirdcallsandthesoftnoise__________________________(当水缓缓推动草时草所发出的).
A、Havingregularmorningmeetings.B、Goingshoppingwithhiswife.C、Havingeveningdinnerathome.D、Havinginterviewwithjour
最新回复
(
0
)