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2019-2020年高考英语大一轮复习Unit2Cloning课时规范训练新人教版选修Ⅰ.阅读理解Axx·高考全国乙卷IamPeterHodes,avolunteerstemcellcourier.SinceMarchxx,Ivedone89trips—ofthose51havebeenabroad.Ihave42hourstocarrystemcells干细胞inmylittleboxbecauseIvegottwoicepacksandthatshowlongtheylast.Inall,fromthetimethestemcellsareharvestedfromadonor捐献者tothetimetheycanbeimplantedinthepatient,wevegot72hoursatmost.SoIamalwaysconsciousoftime.IhadonetriplastyearwhereIwascaughtbyahurricaneinAmerica.IpickedupthestemcellsinProvidence,RhodeIsland,andwasmeanttoflytoWashingtonthenbacktoLondon.ButwhenIarrivedatthecheckindeskatProvidence,theladyonthedesksaid“Well,Imreallysorry,Ivegotsomebadnewsforyou—therearenoflightsfromWashington.”SoItookmyboxandputitonthedeskandIsaid“Inthisboxaresomestemcellsthatareurgentlyneededforapatient—please,please,youvegottogetmebacktotheU...。