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ǵůĿǰڵůИI(y)з֞ɷNůքeůˮůůȻf@NůHbrFůȡůһԒM(fi)Ҳһ˼ҽF(xin)ڌ(sh)е@NݶM(fi)ʽһõԽյXԽůһˮů͛]@ôFF(xin)ڲϷͱвټͥxˮůԼҵĹůʽһͨͥҪbĵůes100ƽңbM(fi)ôs3fKXbɺ߀ҪM(fi)ľȻXĿǰֳȻăr2.45Ԫÿ鷽Ӌ҂2.5㡣Ȼӟˮijؼӟᵽ40ԒһҪ15ȻôÿҪM(fi)Ȼ2.5×15=37.5Ԫôÿ37.5×30=1125Ԫȥÿ춼_ԒһҲ1000Ԫˡ
ůƬůƬ@Nȡůʽڱõñ^࣬Ϸ߀ǺҊůƬůһÿgҪһKůƬf҂һͥһdӋԒҪُI4KůƬ5000KXһƬԒůƬM(fi)þ2fԪҡůƬҲҪˮӟĜضҪȵůһһfůƬĜضҪ_(d)80ŕб^ů͵ĸX^ůƬڵůf߀DZ^˵ůƬһĵȻ10ôÿM(fi)ȼ?x)M(fi)2.5×10=25ԪһҲֻ25×30=750Ԫˡ@һůƬڰbr߀ʹÃrҪȵů(jng)(j)أ
ǿ{(dio){(dio)@3Nůʽf(jng)(j)ʲô@ôf҂һ֪ˡĿǰЈһ_¿{(dio)ăr2000KX߀ǰһdӋ4_{(dio)ăr8000Ԫһ_{(dio)һСr0.8Ӌһ늵ăr0.8KXÿ_10Сrһһ_{(dio)M(fi)M(fi)6.4Ԫ4_4×6.4=25.6Ԫmf@růƬFһc(din)҂һҪ£ǾǼĿ{(dio)ÿ__@ôõһͥһ_2_{(dio)Կ{(dio)M(fi)M(fi)(sh)HҪӋĸ
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