3. Deer mice normally do not travel far from their nests, and deer mice that are moved more that half a kilometer from their nests generally never find their way back. Yet in one case, when researchers camped near a deer mouse nest and observed a young deer mouse for several weeks before moving it to an area over two kilometers away, the deer mouse found its way back to its nest near their camp I unless than two days.
Which one of the followings, if true, most help to explain how the deer mouse might have found its way back to its nest?
(A) The area to which the deer mouse was moved was dryer and more rocky than the area in which its nest was located.
(B) The researchers released the deer mouse in a flat area across which their campfire smoke drifted.
(C) There were very few deer mice in the area to which the deer mouse was moved.
(D) The researchers had moved the deer muse in a small dark box, keeping the mouse calm before it was released.
(E) Animals that prey on deer mice were common in the area to which the deer mouse was moved.
key's b.
不懂b。why not a or e?
这道题，看完题干，要解释这个矛盾，一定得找“他因”。B恰好就是这个一个他因选项。
A文中没有此种比较，无法推理得到结论。就是这个比较存在，也没有更多的信息说更干更石化的环境就能促使老鼠回家，也许得出更不能回去的理由，因为渴死了。（无关）
E只是说了一种吃deer mouse的动物，但没有给出这种动物就能把老鼠弄回去的任何别的信息或者推理，算无关。
pocahontas 发表于 2004-7-29 13:48
3. Deer mice normally do not travel far from their nests, and deer mice that are moved more that hal ...
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