问题标题：
【英语作文:Computers--oneofthemosthelpfulinventions】
问题描述：
英语作文:Computers--oneofthemosthelpfulinventions
葛声回答：
Computersarepopularinourlives.It'shardlytoimagineaworldwithoutcomputer.
Firstofall.Scientistsusecomputerstoforecastweathertomorrow.Itneed3yearstocalculatetheresultif100peoplearedoingthemissionratherthanonecomputer'shalfanhourforthesamework.
Second,computersarenecessaryinbanks,communicationcorporationsandgovernments.
Thelast.Nocomputersnorobots,frequency-changedairconditionsormodernmovies.Ourliveswillbedrab.
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