标题: 曼哈顿逻辑题求解 [打印本页] 作者: vivian_hyy 时间: 2014-8-20 23:12 标题: 曼哈顿逻辑题求解 Ethanol, a fuel derived from corn, can be used alone to power cars or along with gasoline to reduce the amount of gas consumed. Unlike gasolin, ethanol is easily renewable since it is primarily converted from the sun's energy. Moreover, compare with conventional gasoline, pure ethanol is a cleaner-burning fuel. To save energy and reduce pollution, many individuals advocate the increased usage of ethanol as a primary fuel source in conjunction with or in place of gasoline.
In evaluating the recommendation to use to increase the use of ethanol, it would be important to research all of the following EXCEPT:
A. Whether the energy required to grow and process corn used as fuel is greater than the amount of energy ultimately produced.
B. Whether more energy is saved when using ethanol in conjunction with or in place of gasoline.
C. Whether ethanol is as efficient a fuel as gasoline.
D. Whether it is possible to produce more ethanol than is currently used.
E. Whether the process of growing corn for fuel would result in as much pollution as does the production of conventional gasoline.
