gwd2-17

Q17:

Tanco, a leather manufacturer, uses large quantities of common salt to preserve animal hides.  New environmental regulations have significantly increased the cost of disposing of salt water that results from this use, and, in consequence, Tanco is considering a plan to use potassium chloride in place of common salt.  Research has shown that Tanco could reprocess the by-product of potassium chloride use to yield a crop fertilizer, leaving a relatively small volume of waste for disposal.

In determining the impact on company profits of using potassium chloride in place of common salt, it would be important for Tanco to research all of the following EXCEPT:

1. What difference, if any, is there between the cost of the common salt needed to preserve a given quantity of animal hides and the cost of the potassium chloride needed to preserve the same quantity of hides?
2. To what extent is the equipment involved in preserving animal hides using common salt suitable for preserving animal hides using potassium chloride?
3. What environmental regulations, if any, constrain the disposal of the waste generated in reprocessing the by-product of potassium chloride?
4. How closely does leather that results when common salt is used to preserve hides resemble that which results when potassium chloride is used?
5. Are the chemical properties that make potassium chloride an effective means for preserving animal hides the same as those that make common salt an effective means for doing so?

   Answer: e 可以幫我解釋媽謝謝

逻辑推理是需要遵循的准则是:承认实事是正确的,然后在实事里面添加新的原因,来增强或者削弱结论!

本题e选项说得是:用potassium chloride 这个东西保存兽皮是否和用common salt 一样有效,

本文的推理是:用potassium chloride代替common salt来保存兽皮对公司Profit的影响,所以E是无关选项

个人理解,请大家指证