verbal review的CR54题，不太理解正确答案

zcdzheng · 发表于 2013-5-17 14:24:59

54.
Tanco, aleather manufacturer, useslarge quantities of common salt to preserve animal hides. New environmental
regulations have significantly increased thecost of disposing of saltwater that results fromthisuse, and, in
consequence, Tanco isconsidering aplanto usepotassium chloridein placeof common salt. Research has
shownthat Tanco could reprocesstheby-product of potassium chlorideuseto yield acropfertilizer, leaving a
relatively small volumeof waste for disposal.
Indeterminingtheimpact oncompany profitsof usingpotassiumchloride inplace of common salt, it would be
important for Tanco to researchall of thefollowing EXCEPT:
(Al
What difference, if any, isthere between thecost of thecommon salt needed to preserveagiven quantity
of animal hides and thecost of thepotassium chloride needed to preservethesame quantity of hides?
(8)
To whatextentistheequipment involved inpreserving animal hides usingcommon salt suitable for
preserving animal hides using potassium chloride?
(C)
What environmental regulations, if any, constrainthedisposal ofthewastegenerated inreprocessing the
by-productof potassium chloride?
(0)
How closely does leather that results when common salt is used to preserve hides resemblethat which
results when potassium chloride is used?
(E)
Are the chemical propertiesthat make potassium chloride an effective means for preserving animal hides
thesameasthose that make common salt an effectivemeans for doing so?

正确答案是E
不明白的是为啥chemical properties能否使potassium chloride和salt一样有效不影响公司的profit？

zcdzheng · 发表于 2013-5-17 17:54:46

自己up一下的说

maestri · 发表于 2013-5-18 17:33:31

估计你的E选项意思理解错了。E选项应该这样理解：
potassium chloride 中的chemical properties与salt中的chemical properties是不是一样。
不管是哪种chemical properties，只要管用，就可以了，所以无需管是不是同一化学属性。
就好比“不管黑猫白猫，抓住老鼠就是好猫”

zcdzheng · 发表于 2013-5-18 17:43:57

maestri 发表于 2013-5-18 17:33
估计你的E选项意思理解错了。E选项应该这样理解：
potassium chloride 中的chemical properties与salt中的c ...

看明白了果然是看错句子结构了
多谢啦

verbal review的CR54题，不太理解正确答案

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