ȡrһڸ߿־Ը15-20Y(ji)߿ȡǰһǰȡΡٵ,ÿg߀־Ը,ԌҪĵȴ
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ȫy(tng)һ߿ȡY(ji)Ҫ7-8֮gm(x)ͨԺУȡY(ji)ԃrgһ8ѮѮԇȡY(ji)IJԃʽǵʡԇԺپW(wng)߈ԺУپW(wng)ԃ
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ͬʡͬԺУͬεȡ֪ͨl(f)ŵĕrgDzһӵͨ߿ȡ֪ͨİl(f)Ǐĸ߿7Ѯ_ʼһֱ8ĩ9³M
߿ȡԃ
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־ԸμȡεһǰһԺУĸ߿ȡ֪ͨl(f)ŵ֮ٴεĸ߿ȡ֪ͨܕ^ܰl(f)ŵһ㶼810̖Ժ͕m(x)_߀ՈԺУĿͼLҪļ!