※ 引述《maitri (做人呢，最要緊就是開心)》之銘言：
: GWD6-40
: It is theoretically possible that bacteria developed on Mars early in its
: history and that some were carried to Earth by a meteorite. However, strains
: of bacteria from different planets would probably have substantial
: differences in protein structure that would persist over time, and no two
: bacterial strains on Earth are different enough to have arisen on different
: planets. So, even if bacteria did arrive on Earth from Mars, they must have
: died out.
: The argument is most vulnerable to which of the following criticisms?
: A It fails to establish whether bacteria actually developed on Mars.
: B It fails to establish how likely it is that Martian bacteria were
: transported to Earth.
: C It fails to consider whether there were means other than meteorites by
: which Martian bacteria could have been carried to Earth.
: D It fails to consider whether all bacteria now on Earth could have arisen
: from transported Martian bacteria.
: E It fails to consider whether there could have been strains of bacteria
: that originated on Earth and later died out.
: Answer: D
: 我想問的是Ｅ。
: 依題目，細菌從火星來－－＞死光了。
: 如果用無因有果解的話，來自地球的細菌（非來自火星，無因）－－＞死光了（有果）
: 好像也可以削弱，請問是錯在哪裡？
邏輯有一個陷阱就是愛考你「部分」「全部」之間的區別
e選項很明顯就是在說「部分」，
「有一些來自地球的細菌絕種了」
那其他沒絕種的呢？這些沒絕種的地球本土細菌如果對上題目中的資訊
→跟其他細菌沒顯著差別→所有細菌都是來自同一星球
就完全沒有削弱到了。
所以請記住「部分」「全部」是邏輯的一個大考點
另外一個大考點則是「數量」跟「比例」。
dustin
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