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标题: 求一道数学题，OG12里166页98题 [打印本页]

作者: missouyangs 时间: 2010-3-17 07:15 标题: 求一道数学题，OG12里166页98题

题目如下：

On a scale that measures the intensity of a certain phonomenon, a reading of n+1 corresponds to an intensity that is 10 times the intensity corresponding to a reading of n. On that scale, the intensity corresponding to a reading of 8 is how many times as great as the intensity corresponding to a reading of 3?

我连题目都搞不懂，拜托了各位~~

作者: xiangchane 时间: 2010-3-17 20:33

意思就是当N+1是N的10倍的时候，8是3的多少倍，8到7=10倍，8到6=100倍，以此类推，应

该是10的5次方吧，不知道对不对，自己的看法，希望大家指正

作者: liuzhenlin 时间: 2010-3-18 06:59

同意楼上的做法~~~~

作者: missouyangs 时间: 2010-3-19 07:04

谢谢大家的解答，明白了，再帮我一题呗~~

也是OG12里520页的114题：
Guidebook writer：I have visited hotels throughout the country and have noticed that in those built before 1930 the quality.............on hotels built subsequently.
这题为什么选D呢？

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