逻辑PREP07 p2 第7题~大牛来帮忙啊~~~感激~~~

earl911

prep07  p2 中的第七题

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.

为什么选D呢？我的选择是A，原因是感觉A在说如果在logging site 把branches convert了，就需要把大机器运到那里。所以很麻烦，所以加强了题目。

请大牛帮助解答一下哈~用中文吧，害怕自己读不懂……

aomeisoft7

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.
树利用分为2部分：树干做木材，树枝叶做木屑。这种conversion加工的过程(成本=加工费+运输费)，在砍伐地方和市区里，加工费是一样的。然而，木屑的体积是树枝叶的体积一半以下(这里暗示，运输费不同，所以在砍伐地加工好)

D选项:运输费取决于货物的体积，木屑体积<树枝体积，运输木屑费<运输树枝费。加强结论

那么

aomeisoft7

题目里however，说明作者态度，要在砍伐地进行树木加工

A选项说把机器运过去很贵，是削弱作者结论的

earl911

谢谢大牛，懂啦~~~

sunshengkun666

这道题不是加强题吧???这是不归纳题么???

aomeisoft7

这道题不是加强题吧???这是不归纳题么???

-- by 会员 sunshengkun666 (2010/10/1 16:22:35)

是归纳啊，没有人说是加强题啊...

安静的小兔

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.

最后结论 however...  只是说 wood chips 比branch 的运输体积小， 但就没说其他的了， 题目里也没有明确态度去比较两个地方的总加工成本
但D里面谈到 运输费和体积有关， 在加工地的话运输成本低， 但我觉得要支持“wood chips 比branch 的运输体积小”的结论有点牵强。

大家怎么想的呢？