쵽֮҂RĆ}ȡůòfÿ҂MȡůϵXһPС(sh)Ŀеĕr]̎XԼ]ܵԓеů^ڬF(xin)҂ȡůķʽһNеԒ߀xһNȻͬȡůʽ֮gҪMărXDzһӵ҂́һůůƬ{(dio)Ă|ȡů~ˡ

ǵůĿǰڵůИI(y)з֞ɷNůքeůˮůůȻf@NůHbrFůȡůһԒMҲһ˼ҽF(xin)ڌе@NݶMʽһõԽյXԽůһˮů͛]@ôFF(xin)ڲϷͱвټͥxˮůԼҵĹůʽһͨͥҪbĵůes100ƽbMôs3fKXbɺ߀ҪMľȻXĿǰֳȻăr2.45Ԫÿף鷽Ӌ㣬҂2.5Ȼӟˮijؼӟᵽ40ԒһҪ15Ȼ⣬ôÿҪMȻ2.5×15=37.5Ԫôÿ37.5×30=1125Ԫȥÿ춼_ԒһҲ1000Ԫˡ

ůƬůƬ@Nȡůʽڱõñ^Ϸ߀ǺҊġůƬůһÿgҪһKůƬf҂һͥһdӋԒҪُI4KůƬ5000KXһƬԒůƬMþ2fԪůƬҲҪˮӟģĜضҪȵůһһfůƬĜضҪ_80ϣŕб^ů͵ĸX^ůƬڵůf߀DZ^˵ģůƬһĵȻ10ңôÿMȼM2.5×10=25ԪһҲֻ25×30=750Ԫˡ@һůƬڰbr߀ʹÃrϣҪȵů(jng)أ

ǿ{(dio)ˡ{(dio)@3NůʽУf(jng)ˣʲô@ôf҂һ֪ĿǰЈһ_¿{(dio)ăr2000KXң߀ǰһdӋ4_{(dio)ăr8000Ԫһ_{(dio)һСr0.8Ӌ㣬һ늵ăr0.8KXÿ_10Сrһһ_{(dio)MM6.4Ԫ4_4×6.4=25.6Ԫmf@růƬFһc҂һҪǾǼĿ{(dio)ÿ__@ôõģһͥ棬һ_2_{(dio)Կ{(dio)MMHҪӋĸ

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

