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标题: gwd2 gmat-23 [打印本页]

作者: casualwark11 时间: 2005-6-9 06:44 标题: gwd2 gmat-23

Q23:

AMOUNT OF BACTERIA PRESENT

Time

Amount

1:00 P.M.

10.0 grams

4:00 P.M.

x grams

7:00 P.M.

14.4 grams

Data for a certain biology experiment are given in the table above. If the amount of bacteria present increased by the same fraction during each of the two 3-hour periods shown, how many grams of bacteria were present at 4:00 P.M.?

A. 12.0

B. 12.1

C. 12.2

D. 12.3

E. 12.4

Answer: A

“If the amount of bacteria present increased by the same fraction during each of the two 3-hour periods shown“ 这句话是什么意思啊？

谢谢！！

作者: conquer 时间: 2005-6-9 07:12

就是說細菌在題目所給的兩段時間內(每段時間3個小時)會複製相同的比例

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