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
! R( [, B! w8 Z# U; j( Fthose 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
. C* Z% S1 K$ v$ V* ~* `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
: [$ U4 U1 |: u$ j# y$ upowered by conventional forms of energy would be desirable.