1, 花枯萎了不只和浇水次数有关
2, 不能只从成本考虑要用假花还是真花还要从收益角度
3, 最后的那个调查不可靠
4, 那个公司提供的成本数据是否可靠
sample1
In this argument, the author indicates that it is cost-effective to replace real flowers by artificial flowers. To support his conclusion, the author points out that those real flowers need more water to survive in mid-summer. In addition, he reasons that even though the use of artificial flowers spends twice the amount of money of the maintenance of real flowers initially, people will be beneficial to this alternative in a long run. Moreover, a recent survey quoted is cited citizens dissatisfaction with the fiscal performance and their hope of reduction of public spending. As I analyze this argument in close concert, the authors view is not very convincing for three major reasons.
In the first place, the evidence the author provides is insufficient to support that the use of artificial flowers can reduce public spending, even in a long run. The author may emphasize the merit of artificial flowers that they never need water to survive or grow. But he fails to notice that over time, the outside artificial flowers inevitably become messy and dirty, weakening their decorative function. Then people also have to wash them with considerable amount of water. Furthermore, the sun fades the color of artificial flowers. Hence, the city need spend a supplementary cost to replace old ones.
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