쵽֮҂RĆ}ȡůˣòfÿ҂MȡůϵXһPС(sh)Ŀеĕr]̎XԼ]ܵԓеů^ڬF(xin)҂ȡůķʽһNеԒ߀xһNȻͬȡůʽ֮gҪMărXDzһӵ҂́һůůƬ{Ă|ȡů~Σ
ǵůĿǰڵůИI(y)з֞ɷNůքeůˮůůȻf@NůHbrFůȡůһԒMҲһ˼ҽF(xin)ڌе@NݶMʽһõԽյXԽůһˮů͛]@ôFˣF(xin)ڲϷͱвټͥxˮůԼҵĹůʽһͨͥҪbĵůes100ƽbMôs3fKXbɺ߀ҪMľȻXĿǰֳȻăr2.45Ԫÿף鷽Ӌ҂2.5Ȼӟˮijؼӟᵽ40ԒһҪ15ȻôÿҪMȻ2.5×15=37.5Ԫôÿ37.5×30=1125Ԫȥÿ춼_ԒһҲ1000Ԫ
ůƬůƬ@Nȡůʽڱõñ^Ϸ߀ǺҊůƬůһÿgҪһKůƬf҂һͥһdӋԒҪُI4KůƬ5000KXһƬԒůƬMþ2fԪůƬҲҪˮӟģĜضҪȵůһһfůƬĜضҪ_80ŕб^ů͵ĸX^ůƬڵůf߀DZ^˵ůƬһĵȻ10ңôÿMȼM2.5×10=25ԪһҲֻ25×30=750Ԫˡ@һůƬڰbr߀ʹÃrҪȵů(jng)أ
ǿ{{@3NůʽУf(jng)ʲô@ôf҂һ֪ˡĿǰЈһ_¿{ăr2000KX߀ǰһdӋ4_{ăr8000Ԫһ_{һСr0.8Ӌ㣬һ늵ăr0.8KXÿ_10Сrһһ_{MM6.4Ԫ4_4×6.4=25.6Ԫmf@růƬFһc҂һҪǾǼĿ{ÿ__@ôõһͥһ_2_{Կ{MMHҪӋĸ
挦ůůƬ{MӋŴﶼД(sh)ˣ@͔֮(sh)ůƬͿ{齛(jng){к̎ҲЉ̎̎ůƬͬǿʹõ̎ƟЧeáxķNĹůʽr߀ҪȰц}]ȫˣ
زϵϺYůͨ(j)(lin)W(wng)֙Ո(lin)ϵh