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[Critical Reasoning]
试题详情
题目：
When there is less rainfall than normal, the water level of Australian rivers falls and the rivers flow more slowly. Because algae whose habitat is river water grow best in slow-moving water, the amount of algae per unit of water generally increases when there has been little rain. By contrast, however, following a period of extreme drought, algae levels are low even in very slow-moving river water.
Which of the following, if true, does most to explain the contrast described above?
Which of the following, if true, does most to explain the contrast described above?
选项:
A、During periods of extreme drought, the populations of some of the species that feed on algae tend to fall.
B、The more slowly water moves, the more conducive its temperature is to the growth of algae.
C、When algae populations reach very high levels, conditions within the river can become toxic for some of the other species that normally live there.
D、Australian rivers dry up completely for short intervals in periods of extreme drought.
E、Except during periods of extreme drought, algae levels tend to be higher in rivers in which the flow has been controlled by damming than in rivers that flow freely.
答案:
D
提问：
为什么D选项河流短暂干了推出海藻死了，不算过度推理？可能干了很短时间但海藻没死呢？
解答：
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阅读562
提问：
为什么D选项河流短暂干了推出海藻死了，不算过度推理？可能干了很短时间但海藻没死呢？
解答：
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阅读563
提问：
错选E，通过句意理解我排除了A、B、C，在后俩选项里纠结，我看到D选项讲dry up completely和题目中的even in very low-moving river water不一致，因此选了E。请老师解答一下为什么我的思路是错的呢
解答：
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阅读1165
提问：
这个题我错选A，我感觉A更逻辑。食物减少algae减少这很通顺。而且文章最后说even in very slow moving river water。这就说明还有水啊。怎么可能选D说直接干涸了。。
解答：
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阅读1183
提问：
我选了A
解答：
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