标题: 求助prep07里的一道逻辑题！快看哭了·~~ [打印本页] 作者: 亲爱的敌人 时间: 2016-9-15 22:51 标题: 求助prep07里的一道逻辑题！快看哭了·~~ United Lumber will use trees from its forests for two products. The tree trunks will be used for lumber and the branches
converted into wood chips to make fiberboard. The cost of this conversion would be the same whether done at the logging site,
where the trees are debranched, or at United's factory. However, wood chips occupy less than half the volume of the branches
from which they are made.
The information given, if accurate, most strongly supports which of the following? !
(A) Converting the branches into wood chips at the logging site would require transporting a fully assembled wood-chipping
machine to and from the site.
(B) It would be more economical to debranch the trees at the factory where the fiberboard is manufactured.
(C) The debranching of trees and the conversion of the branches into chips are the only stages in the processing of branches
that it would be in United's economic advantage to perform at the logging site.
(D) Transportation costs from the logging site to the factory that are determined by volume of cargo would be lower if the
conversion into chips is done at the logging site rather than at the factory.
(E) In the wood-processing industry, branches are used only for the production of wood chips for fiberboard.
答案是D选项。选项中的Transportation costs from the logging site to the factory 意思是说从logging site 运到 factory 的运费吗？？？既然在两个地方成本一样都可以加工，为什么从logging site 运到 factory 呢？不运的话不就不会产生运输费用这样更便宜吗？？？还是选项的意思表达的是把东西分别从logging site 和 factory 运到其它地方的费用 作者: heavenlam 时间: 2016-9-15 23:14
这道题其他4个选项还是挺容易排除的，除了A有一点小嫌疑，但是和D比一下，还是可以立判高下的，A算是一种题目里没提到的无中生有的揣测。
选D的话我个人是这么想的
重点不是说从logging site运到factory，而是落在后半句，也就是说运输成本的问题。
因为题干说到wood chips occupy less than half the volume of the branches from which they are made，也就是说branch加工成chip是要耗损的，耗损的量大概是一半多。
所以，运输成本的高低就取决于它是在产地加工，还是在工厂加工，如果在产地加工完再运到工厂，因为已经排除掉了耗损，所以cargo的数量就会少一些，那成本就比较低。
题干中说的两地的cost of conversion与D选项中的说法不冲突，运输费是运输费，但加工费是加工费，两地加工费是一个独立条件，加工费里不包含运输费。
