GMAT考试写作指导：Argument范文八
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68. major impediment to the use of solar-powered products is the cost of solar energy and that, given a choice, consumers would prefer products powered by solar energy over those powered by energy derived from coal or oil. On the face of it, this assumption seems acceptable; but it may be that there are other factors besides cost that make solar energy less desirable than other forms of energy. In conclusion, this argument is convincing. To strengthen the argument additional evidence indicating consumer preference for solar-powered products over products powered by conventional forms of energy would be desirable. |
