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楼主: kimtara
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[原始] 柒月伍狗狗(更新)

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11#
发表于 2011-7-7 11:02:04 | 只看该作者
逻辑貌似考古了吧。。。
OG上见过类似。
12#
发表于 2011-7-7 12:59:51 | 只看该作者
那个m-n是不是等于20?。。F(M)=2的X乘以3的Y乘以5的Z=9F(V)=2的X乘以3的平方乘以3的Y乘以5的Z,,所以前后两式只是在3的次数上不同,,多了一个2,,,Y是十位,所以一剪掉就是20
13#
发表于 2011-7-7 13:36:07 | 只看该作者
Springfield Fire Commissioner: the vast majority of false fire alarms are prank calls made anonymously from fire alarm boxes on street corners. Since virtually everyone has access to a private telephone, these alarm boxes have outlived their usefulness. Therefore, we propose to remove the boxes. Removing the boxes will reduce the number of prank calls without hampering people’s ability to report a fire.
Which of the following, if true, most strongly supports the claim that the proposal, if carried out, will have the announced effect?

A.    The fire department traces all alarm calls made from private telephones and records where they came from.
B.    Maintaining the fire alarm boxes costs Springfield approximately five million dollars annually.
C.    A telephone call can provide the fire department with more information about the nature and size of a fire than can an alarm placed from an alarm box.
D.    Responding to false alarms significantly reduces the fire department’s capacity for responding to fires.
E.    On any given day, a significant percentage of the public telephones in Springfield are out of service.

很像这道,不过这道是支持,我估计削弱也就是说其他他报道火灾的效果会比较差
-- by 会员 Joseph_lin (2011/7/7 10:54:37)

不是这题吧
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