Second, the author assumes that the only way to combat increased prices is through government intervention. In a free-enterprise system many other means of affecting the pricing of goods are available. For example, boycotting a product and thereby influencing supply and demand conditions of the commodity is an effective means of influencing the price of the product. In a free market economy the government should consider regulating prices only when all other means to rectify the problem have been exhausted.

　　In conclusion, the authors argument is unconvincing. To strengthen the argument the author would have to show that the only factor influencing the price increases is the growers desire for increased profits.

　　小编提醒：考生们可在日常生活中多读范文，多练笔，培养出好的语感和逻辑，这样才能在考试中写出优秀的作文。

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