- 问题详情:Theworldeconomyhasrunintoabrickwall.Despitecountlesswarningsinrecentyearsabouttheneedtoaddressapotentialhungercrisisinpoorcountriesandanenergycrisisworldwide,worldleadersfailedtothinkahead.Theresultisaglobalfoodcrisis.Wheat,cornandricepricesh...
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