高一英语阅读训练(16)AAustralia'sworstpestsaretherabbits,,therabbitsgrowintothemillionsofones,(蔓延)'diseasein1950cutthenumber,butitwasnotuntil1997whenthespreadofanotherdiseasetargeted(瞄准)$200million(US$112million),alsoreleasedforsporthunting,aregrowingandeatingsheepflocks,costingfarmersA$40million(US$)$10(US$)prizeforeachfoxtailandhasgathered25,(羊羔),“released”inParagraph1means“______”.……??'slifeisspentslee
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