相關Ifthepopulationofthe的文學知識

問題詳情：IfthepopulationoftheEarthkeepson__61._(increase)atitspresentrate，therewill__62._(event)notbeenoughresourceslefttosupportlifeontheplanet.Bythemiddleofthe21stcentury，ifpresenttrendscontinue，we__63_...