职称英语考试理工A完形填空试题附答案

XX年职称英语考试理工A完形填空试题附答案 　人天天都学到一点东西，而往往所学到的是发现昨日学到的是错的。以下是为大家搜索的xx年理工A完形填空试题附答案，希望能给大家带来帮助!更多精彩内容请及时关

XX年职称英语考试理工A完形填空试题附答案 人天天都学到一点东西，而往往所学到的是发现昨日学到的是 错的。以下是为大家搜索的xx年理工A完形填空试题附答案，希望 能给大家带来帮助!更多精彩内容请及时关注我们! Yourcellphoneholdssecretsaboutyou.Besidesthe namesandnumbersthatyou'veprogrammedintoit, traces(51)ofyourDNAlinger(遗留)onthedeviceaording toanewstudy DNAisgeic(遗传的)materialthat(52)appearsinevery cell.Likeyourfingerprint,yourDNAisunique(53)to you——unlessyouhaveanidenticaltwin.Scientiststoday analyzeDNAinblood,saliva(唾液),orhairleftbehind (54)atthesceneofacrime.Theresultsoftenhelp detectivesidentifycriminals(55)andtheirvictims.Your cellphonecanrevealmoreaboutyouthan(56)youmight think. MeghanJ.McFadden,ascientistatMcMasterUniversity inHamilton,Ontario,heardaboutacrimeinwhichthe suspectbledontoacellphoneandlaterdroppedthedevice (57).ThismadeherwonderwhethertracesofDNAlingeredon cellphones一evenwhennobloodwasinvolved(58).Sheand colleagueMargaretWallaceoftheCityUniversityofNewYork analyzedtheflip-openphones(翻盖手机)of10volunteers. Theyusedswabs(药签)tocollectinvisible(59)tracesof theusersfromtwopartsofthephone:theoutside,where