development of technologyРheaven or hell?Р第三组РheavenРtechnology change our ways of travelРWe will save time and liberate our legs.Рtechnology change our ways municationРIf you miss you friends,you meet them conveniently.Рtechnology change our ways of studyРWe can study anywhere,which will stimulate our interest in studying.Рtechnology change our ways of shoppingРyou will stay at home and click your mouse.РhellРenvironmental damageРinformation explosionРhigh tech crime
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