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全国职称英语等级考试全真题(理工类)第一部分阅读理解75分Passage1CATVisashortwayofsayingmunityantenna天线television.Butcabletelevisionisthetermmostpeopleuse.Cabletelevisionallowsviewerstore___iveTVprogramsthattheycannotpickupwiththeirregularantennas.Televisionsignalsdonotfollowthecurve曲线oftheearth.Theytravelinstraightlinesinalldirections.SignalsfromaTVstationmovetowardthehorizon水平线andthengointospa___.Ifyouliveonlyafewmilesfromastationyou___ynotgetanypictureatall.CATVbeganin
1948.Peopleinpla___sfarfromTVstationssharedthecostofputtinguphighantennas.Amunityantennawasusuallypla___donahillamountainoronahightower.TheantennapickedupTVsignalsandfedthemintoas___lllocalstation.Fromthestationthickwirescalledcablesranouttonearbyhomes.Eachpersonusingthecablepaidamonthlycharge.CATVworkedwellandsoonnewuseswerefoundforit.Localstationscould...。