Almosteverynewinnovationgoesthroughthreephases.
Wheninitiallyintroducingintothemarket,theprocess1._____
ofadoptionisslow.Theearlymodelsareexpensiveand
hardtouse,andperhapsevenunsafe.Theeconomic
impactisrelativelygreat.2._____
Thesecondphaseistheexplosiveone,wheretheinnovation
wasrapidlyadoptedbyalargenumberofpeople.Itgets3._____
cheaperandeasiertouseandbecomessomethingfamiliar.
Andtheninthethirdstage,diffusionoftheinnovation
slowsdownagain,asifitpermeatesoutacrosstheeconomy.4._____
Duringtheexplosivephase,wholenewindustriesspring
uptoproducethenewproductorinnovation,andtoservice
it.Forexample,duringthe1920s,therewasdramatic5._____
accelerationinautoproduction,from1.9millionin1920
to4.5millionin1929.Thisboomwasaccompaniedwithall6._____
sortsofotheressentialactivitiesnecessaryforan
auto-basednation:Roadshadtobeenbuiltforthecarsto7._____
runon;refineriesandoilwells,toprovidethegasoline;
andgarages,torepairit.8._____
Historically,thesamepatternisrepeatedagainandagain
withinnovations.Theconstructionoftheelectricalsystem
requestedanenormousearlyinvestmentingenerationand9._____
distributioncapacity.Theintroductionoftheradiowas
followedbyabuyingspree(无节制的狂热行为)byAmericans
whatquicklybroughtradiosintoalmosthalfofallhouseholds10._____
by1930,upfromnearlynonein1924.
1.introducing改introduced;