Verbal review里的一道CR，谁能给咱讲讲不？

pumpkin223

54. Tanco, a leather manufacturer, useslarge quantities of common salt to preserve animal hides. New environmental
regulations have significantly increased the cost of disposing of saltwater 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 volumeof 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:

(Al 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?

(8) To whatextentis the equipment involved in preserving animal hides using common salt suitable for
preserving animal hides using potassium chloride?

(C) What environmental regulations, if any, constrain the disposal of the waste generated in reprocessing the
by-product of potassium chloride?

(0) How closely does leather that results when common salt is used to preserve hides resemble that which
results when potassium chloride is used?

(E) 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?

看完觉得所有选项都挺对的。。然后书后答案是说因为题目里已经说到both r effective method，所以E无用。。

LeoBX

打个比方，我本来用黑猫抓老鼠，现在换白猫，讨论这个决定怎么样
A就相当于在评估，换白猫会不会更贵？同样是抓老鼠，考虑下用两种猫的成本，可以吧？
B，我本来用黑猫，家里准备了很多猫粮，现在换了白猫，原来的猫粮可不可以用来养白猫？
C，白猫相对黑猫有个缺点，抓老鼠产生副作用，把老鼠尸体乱扔，家里对这个问题的忍受范围是怎样，是不是也可以是一个考虑因素？
D，两种猫抓老鼠效果有多少差别？
E，两种猫抓老鼠用的爪子有什么区别?

很明显了吧？

pumpkin223

例子举的太牛X了。。。好好理解。。感谢。。~><.

yyt19

顶一楼，太贴切了，膜拜~

easttiger2010

例子是够贴切的，有英吉的风范。顶！！！