쵽֮҂RĆ}ȡůòfÿ҂MȡůϵXһPС(sh)Ŀеĕr]̎XԼ]ܵԓеů^ڬF(xin)҂ȡůķʽ࣬һNеԒ߀xһN(dng)Ȼˣͬȡůʽ֮gҪMărXDzһӵ҂́һ£ůůƬ{(dio)Ă|ȡů~Σ

ǵůĿǰڵůИI(y)з֞ɷNůքeůˮůůȻf@NůHbrFůȡůһԒMҲһ˼ҽF(xin)ڌе@NݶMʽһõԽյXԽ࣬ůġһˮů͛]@ôFF(xin)ڲϷͱвټͥxˮůԼҵĹůʽһͨͥҪbĵůes100ƽbMôs3fKXbɺ߀ҪMľȻXˡĿǰֳȻăr2.45Ԫÿף鷽Ӌ㣬҂2.5Ȼӟˮijؼӟᵽ40ԒһҪ15ȻôÿҪMȻ2.5×15=37.5Ԫôÿ37.5×30=1125Ԫȥÿ춼_ԒһҲ1000Ԫ

ůƬůƬ@Nȡůʽڱõñ^Ϸ߀ǺҊůƬůһÿgҪһKůƬf҂һͥһdӋԒҪُI4KůƬ5000KXһƬԒůƬMþ2fԪůƬҲҪˮӟĜضҪȵůһһfůƬĜضҪ_(d)80ŕб^ů͵ĸX^ůƬڵůf߀DZ^˵ģůƬһĵȻ10ôÿMȼ?x)M2.5×10=25ԪһҲֻ25×30=750Ԫ@һůƬڰbr߀ʹÃrҪȵů(jng)(j)أ

ǿ{(dio)ˡ{(dio)@3Nůʽf(jng)(j)ʲô@ôf҂һ֪ĿǰЈһ_¿{(dio)ăr2000KXң߀ǰһdӋ㣬4_{(dio)ăr8000Ԫһ_{(dio)һСr0.8Ӌһ늵ăr0.8KXÿ_10Сrһһ_{(dio)MM6.4Ԫ4_4×6.4=25.6Ԫmf@růƬFһc҂һҪǾǼĿ{(dio)ÿ__@ôõģһͥһ_2_{(dio)Կ{(dio)MMHҪӋĸ

挦ůůƬ{(dio)MӋŴﶼД(sh)ˣ@͔֮(sh)ůƬͿ{(dio)齛(jng)(j){(dio)к̎ҲЉ̎̎ůƬͬǿʹõ̎ƟЧeáxķNĹůʽr߀ҪȰц}]ȫ
زϵϺYůͨ(j)(lin)W(wng)֙(qun)Ո(lin)ϵh

