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һPI~RҪ
иԇĵһPIǣ~һҪ҂֪иĆ~^ȥи@ӵڅ^ȥиxֻ350ÿƪиӵ700ÿƪ~RĿȻ^~Rռıؑԓx}Ŀ1/4҂چ~@һPһܺõͻƵԒڿиǷdzЎиx͘˜ҲҪ҂8ǧҵ~R@ӵ~RͬWxһĕrČWЎͬWһġ²xϵϵK
ڶPI Ҫ
ڶPIЇf һҪһҪſ҂ҲѸ߷Wĵúʹҹһ@ЩͬWĂ俼^У҂l(f)F(xin)һcеĸ߷ͬW һǷdzďģʲô?иЬF(xin)ĿҪ҂ һK҂
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F(xin)҂ͬW ϵĵõ^ȥöW(wng)վ϶кܶ ϵd߀ȥһЩWľW(wng)վȥеѽƬvnƬȥ@҂ǷdzȻ҂ VOAȏV(ji)Ŀ VOAҲһЩ|҂俼ҲǷdz߀ĺܶϣ҂˸X“̽”Ӣİ挦҂fǷdzһ俼ܶ}Ķ^ии x^@ҲDZ^õԿ Ԓҽh DzϧһдrMߣ@ӌ҂иfǷdz
PIӛPӛиc
Ҳиɹ俼PI֮һl(f)F(xin)и߀һЩ@Ҳ҂ڽ̌W^̮к҂ώڷeOиԇ^аl(f)F(xin)һҪ——и߀e(c)ؿһWӛPӛʲô@ôf? һ һξ56^ȥ ^Л]}ĿF(xin)f@ԺŽo}ȥ} ^̮ҪӛPӛȻ(j)ĹPӛȥش}Ԓش÷dzI(y)ZҲһӵZ俼ӛPӛZ3456}ҪӛPӛ3456}Ҫ҂C xă(ni)ȥ^ش}x fCһoՓx߀ ϶Ҫ҂ӛPӛdzdzڌҲһӵģֵľCόҪ҂xһƪ£ һƪȻٌˣPӛӛñ^õԒǺЎ҂l(f)F(xin)䌍иPI Ҫ~RҪپѸԼӛPӛ@Щиĸ߷䌍·Ɍ
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@fӛPӛWnõdzPIF(xin)ھպ@@҂WoՓxҲ߀xҲijɹҲЎģ҂˸XиĵɹPIΰѹPӛӛøһЩ
һPIc VS TPO
ĂPIcǿǰһҪģ fx헵ߴֻҪкҎ(gu)ͲІ}ǰи߷ǷdzPIģ҂F(xin)ҲѺl(f)еę(qun)Ŀԇo̲ȫM^ĵġɵĽ̲߀һЩijĽ̲ȫMM҂@Щ
@֮ҿETSľW(wng)վһa(chn)ƷTPO@}u30@Щ}Ŀ҂feFʲô?ETSи}䌍^ȥ^}ԺܶͬWԺl(f)F(xin)ķ֔(sh)͌H֔(sh)HиԇyһģһӵTPOϙCMпԇ@ӾͽoVӿԇͬWṩϙC͌(zhn)ęC
҂һдĽ̲ĵĽ̲ĵȵһЩ̲ġڶTPOeFF(xin)ѽ(jng)6}ֱӵETSľW(wng)վͿЇfoՓκοԇֻҪ(jng)^ģM}ӖܿóɿҲֻҪ҂}ʮףW(wng)jˎиԇĆ}ܿMijɿ
ЇfoՓκοԇֻҪ(jng)^ģM}ӖܿóɿҲֻҪ҂}ʮףW(wng)jˎиԇĆ}ܿMijɿ