首页
登录
职称英语
Cell Phone Lets Your Secrets Out Your
Cell Phone Lets Your Secrets Out Your
题库
2022-08-02
63
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, ______traces____(51) of your DNA linger (遗留) on thedevice according to a new study DNA is genetic (遗传的)material _____that_____ (52) appears in every cell. Like your fingerprint, yourDNA is _____unique______ (53) to you——unless you have an identical twin. Scientiststoday analyze DNA in blood, saliva (唾液), orhair left ____behind_______ (54) at the scene of a crime. The results oftenhelp detectives identify ____criminals______ (55) and their victims. Your cellphone can reveal more about you ____than_____ (56) you might think. Meghan J. McFadden, a scientist at McMasterUniversity in Hamilton, Ontario, heard about a crime in which the suspect bledonto a cell phone and later dropped the____device_____ (57). This made herwonder whether traces of DNA lingered on cell phones一evenwhen no blood was___involved_____(58). She and colleague Margaret Wallace ofthe City University of NewYork analyzed the flip-open phones(翻盖手机)of10 volunteers. They used swabs (药签) tocollect _____invisible___ (59) traces of the users from two parts of the phone:the outside, where the user ____holds_____(60) it, and the speaker which isplaced at the user's ear The scientists cleaned the phones using asolution made mostly__of____(61) alcohol. The aim of washing was to remove alldetectable traces of DNA. The owners got their phones back for another week.Then the researchers ___returned________ (62) the phones and cleaned each phoneonce more. The scientists discovered DNA that _____belonged______(63) to the phone's speaker on each of the phones. Better samples werecollected from the outside of each phone, but those swabs also picked up DNAthat belonged to other people who had apparently also ____handed______ (64) thephone Surprisingly, DNA showed up even in swabsthat were taken immediately after the phones were scrubbed. That suggests thatwashing won't remove all traces of ___evidence________ (65) from a criminal'sdevice. So cell phones can now be added to the list of clues that can clinch (确定)a crime-scene investigation.文章(41~55) A. name B.pictures C. shapes D. traces
选项
答案
D
解析
转载请注明原文地址:https://www.tihaiku.com/zcyy/1491809.html
本试题收录于:
理工A题库理工类分类
理工A
理工类
相关试题推荐
随机试题
Generallyspeaking,threetypesofproblemsareinvolvedin【T1】______.They
PASSAGETWOTheconstructionissue
[originaltext]Therearedifferentideasaboutpetsindifferentpartsofth
下列关于校对符号方法的表述,不正确的是()。A.校样中的错误,要用引线拉出到版
人胰岛素中含有的氨基酸数量为A.16种21个氨基酸 B.15种51个氨基酸
肛裂病人的典型临床表现是()。A.疼痛、出血、排便不尽感 B.疼痛、便秘、出
针刺下列何穴有导致气胸危险A.幽门 B.神封 C.华盖 D.璇玑
现代农业的发展目标是由()构成的复合体系。A:经济目标 B:技术目标 C:生
在施工质量验收过程中,涉及结构安全的试块、试件以及有关材料,应按规定进行()检
桥梁按跨越障碍物性质划分,有( )。 A.跨河桥 B.跨线桥 C.高架桥
最新回复
(
0
)