ԭʼֱ[ϵͳ] :derive
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Īմһ/?ѣһֱϵ˶Ūһҧ촽Լʶѣʹϵˡ
ȫƲƵ˶ĶӴ˼֣Ʋסһе˻Ƶɤ㡢˰˻Ī̲סĴϵˣԱ߷ߡ
û뵽·ε/ĶҰȫɣͬʱϵջͷб͵ǵĺ˲ʩѹ
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ͻȻסĪƬ̵ʧȻعֻԼ첻Լģ۵ʶȥҲ뻢ڣⱻ˱һ顣û취Īȥҧߵ࣬ʱһѪζ
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ʱһվͬʱҲĪһʱûĪͻȻʧظŵı˵IJӡ
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ǿлĪûʱ俼DZģץžݰ㲻ҷɣֻܳɺһһɵĿС
֪˼Σֱڸо˵ӲﶯԽԽ죬ʶҲˣæҲŽ
ͬʱĪҲˣDZ˸㡣ֱøմĿĪԼ塣
˳ȥĪؿ˵
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磬һεĶЩС˳һ룬ֻʣ/?ͷž/?ҺεIJܣ˵Ǿ仰ǸȻʹˣʱְѾЩĶڸſ˼֡
Īˡ
ĪһΰɣҲ˱ģڴؿĪĪڵķҲŶ˶
ҲΪ֮ǰ֮˵Ľûж䣬ΧֻԽԽִĪ۵IJ˵Ĵ
仰ĪӵϾץһ鲻Сʯͷȥ£еϲҲԸϣžܲϢһֱ
꣬Īͷң˭֪ʱΪĹȫ̧һû
Ƽһε˼Īڻˣ˵ˣҪҾ͡
֮Ļûļ˵ڣֱ죬ĪᾪֵĸеڿʼĴִ壬ᣬһᶨ·ʲôΰľ
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ϵͳûһҩ
Цɣ
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ǡͦܵ𣿡
ҵλ̳ǿûĶ
õġ
ҵˣ裬κһڲ١
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ιȥ˿оĶһĪϽһƣͻһԵƤϣۿһ±Ƶ
ԼͻȻ̱һ±ƵĸоĪһӵɫdzϺܻţ˵ʲôһ°ЩˣôͻȻήأ
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