摘 要: | Reading&Writing2003.11Doyouknowhowlongitsbeensincemobilephoneswerefirstinvented?OnApril3,30yearsago,thefirstpubliccallwas1fromahandheldwirelessphone.MartinCooper,a(n)2researcheratMotorola,madethecallfromacornerinNewYorkCitybackin1973.Peoplewerevery3atthephone,Cooperremembered.“Wecausedagreatstir(轰动),”hesaid.Thephonewasa4thingbytodaysstandards—it5almost1kilogramandwasabout25centimetreslong.Now,6phonesfitintothepalm(手掌)ofyourhandandweighlittlemorethanalemon.Butbackthen,itwasahuge7,es…
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