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ǵůĿǰڵůИI(y)з֞ɷNůքeůˮůůȻfˣ@NůHbrFůȡůһԒMҲһ˼ҽF(xin)ڌе@NݶMʽһõԽյXԽůһˮů͛]@ôFˣF(xin)ڲϷͱвټͥxˮůԼҵĹůʽһͨͥҪbĵůes100ƽbMôs3fKXbɺ߀ҪMľȻXĿǰֳȻăr2.45Ԫÿף鷽Ӌ҂2.5Ȼӟˮijؼӟᵽ40ԒһҪ15ȻôÿҪMȻ2.5×15=37.5Ԫôÿ37.5×30=1125Ԫȥÿ춼_ԒһҲ1000Ԫ
ůƬůƬ@Nȡůʽڱõñ^Ϸ߀ǺҊġůƬůһÿgҪһKůƬf҂һͥһdӋԒҪُI4KůƬ5000KXһƬԒůƬMþ2fԪҡůƬҲҪˮӟĜضҪȵůһһfůƬĜضҪ_80ŕб^ů͵ĸX^ůƬڵůf߀DZ^˵ůƬһĵȻ10ôÿMȼ?x)M2.5×10=25ԪһҲֻ25×30=750Ԫˡ@һůƬڰbrϣ߀ʹÃrҪȵů(jng)أ
ǿ{(dio){(dio)@3Nůʽf(jng)ˣʲô@ôf҂һ֪ˡĿǰЈһ_¿{(dio)ăr2000KX߀ǰһdӋ4_{(dio)ăr8000Ԫһ_{(dio)һСr0.8Ӌһ늵ăr0.8KXÿ_10Сrһһ_{(dio)MM6.4Ԫ4_4×6.4=25.6Ԫmf@růƬFһc҂һҪǾǼĿ{(dio)ÿ__@ôõһͥ棬һ_2_{(dio)Կ{(dio)MMHҪӋĸ
挦ůůƬ{(dio)MӋŴﶼД(sh)@֮У͔(sh)ůƬͿ{(dio)齛(jng){(dio)к̎ҲЉ̎̎ůƬͬǿʹõģ̎ƟЧexķNĹůʽr߀ҪȰц}]ȫ
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