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學習快評丨qibao666888　　例??(li)如?(ru)“揚??(yang)棄??(qi)”??，我??(wo)認??(ren)為??(wei)可??(ke)視??(shi)作??(zuo)一?(yi)種??(zhong)農(nóng)??(nong)業(yè)??(ye)比?(bi)喻??(yu)??。??“揚?(yang)”是??(shi)將??(jiang)谷??(gu)物??(wu)揚??(yang)起??(qi)以??(yi)篩??(shai)出??(chu)有??(you)用??(yong)的??(de)谷??(gu)粒??(li)??，“棄??(qi)”即??(ji)丟??(diu)棄??(qi)谷??(gu)殼??(ke)等??(deng)無?(wu)用??(yong)之??(zhi)物??(wu)??。整??(zheng)個?(ge)過??(guo)程??(cheng)如??(ru)同??(tong)辯??(bian)證?(zheng)篩??(shai)選??(xuan)：事??(shi)物??(wu)經(jīng)??(jing)過??(guo)反??(fan)復??(fu)檢??(jian)驗?(yan)??，無??(wu)法??(fa)繼??(ji)續(xù)?(xu)使?(shi)用??(yong)的??(de)雜??(za)質(zhì)??(zhi)將??(jiang)自??(zi)然??(ran)脫??(tuo)去??(qu)??，最??(zui)終??(zhong)留??(liu)下??(xia)精??(jing)華??(hua)???！　∈??(shou)訪??(fang)者??(zhe)簡??(jian)介??(jie)：。