※ 引述《chenemily (天天保持好心情)》之銘言： : Two centuries ago, Tufe Peninsula became separated form the mainland, : isolating on the newly formed Tufe Island a population of Turfil sunflowers. : This population’s descendants grow to be, on average, 40 centimeters shorter : than Turfil sunflowers found on the mainland. Tufe Island is significantly : drier than Tufe Peninsula was. So the current average height of Tufe’s : Turfil sunflowers is undoubtedly at least partially attributable to changes : in Tufe’s environmental conditions. : Which of the following is an assumption on which the argument depends? : C.The mainland’s environment has not changed in ways that have resulted in : Turfil sunflowers on the mainland growing to be 40 centimeters taller than : they did two centuries ago. : 請問一下 答案c取非之後哪裡有反駁 : 看不太出來 : c取非是說 因為環境的改變使得花比200年前高40cm : 題目結論說 island比peninsula乾燥 所以毫無疑問的 歸因於環境條件的改變 題目 : Tufe的sunflowers比mainland的sunflowers short 40cm, 因為Tufe island比Tufe Peninsula乾燥. 所以是因為"Tufe"環境的改變造成此sunflowers short 40cm. 答案(c) : 取非後, 並非Tufe的環境使其flowers short40 cm. 是mainland環境使其 flower長高40cm. 所以雙方才會有40cm的差距. 此題我是覺得第ㄧ句要抓住題目的背景說明. 不然後面會看的很痛苦. 參考參考. --

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