求助！！！reasoning ~~~xiexie

lihaolan · 发表于 2012-8-25 12:12:08

4. State researchers have found that since the oil price increases of the 1970s, there has been a decline in home energy consumption. They concluded that almost all of the decline has been achieved through reduced standards of living and changes in the way people spend their time.

Each of the following, if true, would support the conclusion above EXCEPT:

(A) Sales of portable heaters rose as families concentrated their winter activities in a limited number of rooms.

(B) During the winter months, more people frequented public places such as libraries and community centers and, on the average, spent considerably longer periods in them than they had previously.

(C) More than 39 percent of households were able to decrease energy costs substantially by having relatively inexpensive work done to improve the efficiency of their existing heating systems.

(D) At least 59 percent of households maintained a lower indoor temperature than they had been accustomed to maintain on very cold days.

(E) Members of at least 60 percent of households showered for shorter periods of time than they had previously
key。c
是因为c不符合reduced standards of living and changes in the way people spend their time么？
c具体是什么意思。。

simonshen · 发表于 2012-8-25 13:27:24

reduced standards of living and changes in the way people spend their time 大致是说人们依靠降低生活水准或改变行为方式来降低能源消耗。比如原来暖气打到28度的，现在为了节省能源所以打到26度，这个就是通过降低生活水准来省电。而C说的是超过39%的家庭实际是通过对现有取暖装置进行改装，通过提高其能源使用的效率来降低能耗。比如原来一个晚上维持28度的温度要耗3度电，但改装了设备以后，一晚上28度只需要2度电，这样的能源节省就不是题目所说的通过降低生活水准的方式来实现的了。

lihaolan · 发表于 2012-8-25 22:20:38

THANKS!!

求助！！！reasoning ~~~xiexie

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