иԇ Щ(x)ķ
һи ô(f)(x)

1(bio)־~ԭt
1(dng)и F(xin)һЩԭĘ(bio)־~rһҪעʮа˾ŕ
2{(jng)Ƨ~F(xin)˵~ֻǸڿӛ]ӰfԒ˸ጵ@rʹ㲻⣬ͬDzҪٌעһfԒ˽@rጵă(ni)ݾһҪм(x) һ
2 ʲôxʲôԭt
ͨԣֻҪ ҊͬrxҲҊˣ@x헱ҲS_x헡 Ҋʲô~xʲô~ Ҋʲô˼xʲô˼ Ҋʲôxʲô@ԭt ڌH}зdz
3Ҫ(ni)ԭt
f ʲôxʲôǻļԭtҪ(ni)ԭtһDZ^ҪČԭt ӕrһֱҪfԒͨ^@ӂ_(d)ʲôӵϢֻUʲôӵ^cH@ҲǶӵҪ(ni)ݡһeʲô~] Ҋʲôӛ] h(yun)ȥ/fҪ^cԼ /fǾԒҪ^cP(gun)ϵץס@һc}ĵ÷ʾ͕
4
и rҪٿ}Ŀ4xҲSֻ12ĕrgMܵЩĂx؏(f)F(xin)~cȵ@ @Щ~ĕr?q)ͨ^@Щ(f)F(xin)~̈́~³Ԓ}
и ԇҪע
1Ҫø\h(yun)
ȫϤи }֮ǰҪ friendsӢDzҪ ӢZ ӢZ2/3ô ͲһˮƽϤ}Ԕ@ѽ(jng)ǹҪø\h(yun)
2؏(f)
}ԇӛסи еһЩЩˠqf ͕һֱ ֱ ֹ@NDz_ġ
'ҪԭBxJ(rn)R~R(x)Z һeۿZ~R^ ˺ܶζֲԸֳⷭôh(yun)@Щ(ni)ֵܶă(ni)ݣôָԼͨ^؏(f) Ū
䌍J(rn)رһټϴŎxױ@Щ(ni)ݾαط(f)ȥ ֲMrM
3}~
hһvи е~@Ƿdzõ@Щ~LrgԒҪ
@Щ~y𰸮a(chn)벻и Ԓһ㲻fc҂R෴Ė| fʲôʹܶ BɎҲ34}Ŀ
4 xҪ
и Ӗ(xn)ҪxһЩҪBm(x)θxͱһЩ~R(x)Z֮⣬ һεЧҪh(yun)h(yun)xһεЧ
@ bҺܶ˺ܶ~l(f)(bio)(zhn) һαxһЧҪãҸкόH
иԇ Щ(x)ķP(gun)£
2.䛾(x)ķЩ
3.ľ(x)Щ?
4.٤ľ(x)Щ
5.䛾(x)ķЩ
7.(x)Щ
8.H٤Щ(x)
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