零点定理表明，连续函数在区间内必存在至少一个零点。

歌词千寻DropkickMurphys-RoseTattoo.ThepicturestellthestoryThislifehadmanyshadesI'dwakeupeverymorningandbeforeI'dstarteachdayI'dtakeadragfromlastnight'scigaretteThatsmolderedinitstrayDownalittlesomethingandthenbeonmyway.ItraveledfarandwideAndlaidthisheadinmanyportsIwasguidedbyacompassIsawbeautytothenorthIdrewthetalesofmanylivesAndworethefacesofmyownIhadthesememoriesallaroundmeSoIwouldn'tbealone.SomemaybefromshowingupOthersarefromgrowingupSometimesIwassomessedupanddidn'thaveaclueIain'twinningnooneoverIwearitjustforyouI'vegotyournamewrittenhereInarosetattoo.InarosetattooInarosetattooI'vegotyournamewrittenhereInarosetattoo.Thisone'sforthemightyseaMischief

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