GWD31-16 请大家讨论 - ChaseDream

其实，本题的B、D、E初看起来，似乎都有doubt on the prediction 的作用。

但是，仔细分析，结合Therefore, Light-line is one of the companies that will most benefit if new long-distance fiber-optic telecommunications networks are constructed. 应该E最好。

B: 即使仅从利润角度考虑， spend proportionately more on labor and materials仍然可能增加更多的纯利润，比如规模经济等等带来的（当然，其实没必要这样分析的）。

D.如果没有前面的许多论述和结论中的条件（如：networks of fiber-optic cable have been replacing electrical wire for transmitting telecommunications signals. 和 if new long-distance fiber-optic telecommunications networks are constructed.），则D应该能起到很好的削弱结论的作用。

呵呵，要是我和ayang1017 MM的感觉都是错的，可是互为帮凶了。

我认为选D,新的技术发展了，都不需要文中所提的技术了，当然企业不能因此盈利了

我当初是看了一眼E中的Several manufacturers 就把他排了！嗬嗬！因为我已经觉得B对了，这样的排除不免草率！

回过来想想，其实还是这个问题啊！说若干个生产者正在发展新的regenerator technologies ，我觉得这several 不能就此排除LL，说不定LL也正研究呢！这是很有可能的，因为E旨在讲述其他，而未涉及LL！从本质上来讲，他是个无关项！

至于D项，文中很明白的说networks of fiber-optic cable have been replacing electrical wire for transmitting telecommunications signals. D的推理是对文中事实的讨论，是经典的无关选项！

B我也觉得不是很好！但它是的的确确的削弱了LL赚钱的可能！

最后我还想重申一下我对E的看法，主要是我觉得他并没有和LL建立起有效的关系！在对一种商业策略削弱的时候，用到competitor是很常见的，也是很正确的。但是此题中Several manufacturers并没有和LL构成明确的竞争关系，一切的关系都是大家猜得！所以我觉得E不对！

应该是E吧！B是不对的，LL公司本来就是做regeneration的，增加成本是为了获得更多的利润，难道LL没有利润会去增加投入吗？不可能的！D是无关选项，因为题中指出了In recent years, networks of fiber-optic cable have been replacing electrical wire for transmitting telecommunications signals.即使有了新技术，也不是现在马上就用的，目前都用fiber中的tele技术。所以只有E是对的，因为现在tele技术中的signals不需要regeneration了，那么否定了结论！！

以下是引用z520m在2005-11-30 14:42:00的发言：

说得好。投入大不能否认利润可以更高。否则，现在的500强企业不可能追加投资成为现在的样子了，说不定还是作坊呢。呵呵呵 e我也看了很长时间，因为用的是进行时态，正在发展，最大的问题是将来能发展出来吗谁知道呢。说不定这技术还太不成熟，三年五年都没结果。但是e也算最好的了讨论

我觉得应该是E，因为文中提到了if new long-distance fiber-optic telecommunications networks are constructed.

这是一个条件，和距离和fiber-optic telecommunications 都有关系，在削弱的时候也要考虑从这个条件中提到的因素进行削弱。

without either wire or fiber-optic cable.改变了条件，而且不知道这种技术是不是可以用于远距离传输。

这题我没想通，为了让大家注意到这题，我又重开了一贴，汗。。。。。

实在觉得E不好。新技术好不代表市场好，只能说他在技术上领先，不能说他在市场上领先啊！至少我们不能通过E排除这个可能吧。（我觉得中国的那个小灵通是个例子吧

）

而且题目问的是most benefit,我想是说要是大家都买L-L的产品，这小子还不赚翻了。但是B说了，L-L想要卖的多就必须能造的多，要投入很多扩大生产。因此L-L不会赚翻了！注意是赚翻了哦，呵呵

哎~~偶也选的B哇!!当时看到E的时候还愣了下..不过又觉得说不清楚...所以还是选B了，感觉告诉我关于这种利润的问题要考虑成本..

如果从纯数字的角度看的话,我一开始投资1million,我的成本费用占了45%,那么我这样可以赚0.55m是吧~

然后我扩大再生产,我投资100m,成本费用上升到50%,那么就可以赚50m了~钱赚的是多了...

但是从投资项目评估的角度看,这种追加成本是绝对不合理的!!

而E选项的话,就算更加快又能怎么样呢?也许现在的那种快已经是sufficient了~

首先，B一定不是正确答案，问题问的是casts the most doubt on the prediction about light-ling’s prospects?而B说的是，对啊LL要发展，一定要投入更多人工成品和材料，这不是多余的吗？要有产出一定要有投入啊，凭什么说偶增加投入会减少偶产生利润的可能性啊？显然不是削弱。

然后E说，有好几家厂都在发展一种新技术，如果成功的话，传输速度会比现在没有re技术快好多呐~

偶对E的理解是，原文中说Light-Line is the leading manufacturer
of signal regenerators.，有了E就暗示了你以后也许就不是那个leading的公司啦，你的江湖地位都不保啦，怎么还可能most benefit呢？所以削弱了原文结论。

倒是那个D，偶一直没想明白说得是啥意思，如果偶没理解错，它是说已经有一些技术，是可以令信号传输不需要通过线路或者光纤来进行啦。都不用了，那LL自然不能赚钱啦，那岂不也削弱了原文吗？

in choice B：Expending investment on the material and labor is such a defence that is not sufficient.Beside what you expend on each product,there is always a corresponding incomes from each products in terms of its cost ,including cost from material , cost from labor and cost from machine as well.You will get the profit from each of your product when you minize your cost on matrial and labor.

in choice D: it says that there is an alternative way by which signals could pass it through.But we don't what it is .whether it could make the transmittion much faster or further.If the answer is "not",then the it will not be a problem .Let it be there ,and it won't get along with the profit-making by LL,a leading manufactuer

in choice E:it is said that there will be some companies focus on develop some new technoloy that will make the signal transmit much further than that present.If the it is true the totally requirments for the product,regenators ,will break down.And then the benifit will be undermined.

E: 因为某种外因导致LL无法从long-distance construction 中获益，是最直接的答案了

16: In recent years, networks of fiber-optic cable have been replacing electrical wire for transmitting telecommunications signals. Signals running through fiber-optic cables deteriorate, and so the signals must be run through a piece of equipment called a regenerator before being transmitted father. Light-Line is the leading manufacturer of signal regenerators. Therefore, Light-line is one of the companies that will most benefit if new long-distance fiber-optic telecommunications networks are constructed.

Which of the following, if true, casts the most doubt on the prediction about light-ling’s prospects?

A: Telecommunications signals sent along electrical wires can travel much farther than signals transmitted through fiber-optic before needing to be regenerated.

B: Expanding its production of regenerators will require Light-line to spend proportionately more on labor and materials.

C: The volume of signals that a fiber-optic cable can carry is several thousand times greater than the volume that can be carried by an electrical wire of similar size.

D: There are technologies that enable telecommunications signals to be transmitted without either wire or fiber-optic cable.

E: Several manufacturers are developing regenerator technologies that will allow signals to be transmitted many times farther than at present before requiring regeneration.

E正确。注意结论中的充分必要指示词“if”，也就是说要在“如果new long-distance fiber-optic telecommunications networks are constructed成立”的条件下，来削弱Light-line is one of the companies that will most benefit 这个结论。只有E符合，B、D无关。

D: There are technologies that enable telecommunications signals to be transmitted without either wire or fiber-optic cable.

D里面，已经有了可以无线传播的技术那又怎样呢？有了这样的技术并不代表一定要被使用啊。所以还是E正确。

In recent years, networks of fiber-optic cable have been replacing electrical wire for transmitting telecommunications signals. Signals running through fiber-optic cables deteriorate, and so the signals must be run through a piece of equipment called a regenerator before being transmitted farther. Light-Line is the leading manufacturer of signal regenerators. Therefore, Light-line is one of the companies that will most benefit if new long-distance fiber-optic telecommunications networks are constructed. 建好fiber→为了要更快→regenerator→L公司利益↑

Which of the following, if true, casts the most doubt on the prediction about light-line’s prospects?

A. Telecommunications signals sent along electrical wires can travel much farther than signals transmitted through fiber-optic before needing to be regenerated. 否定的位置不对，原文前提已经说fiber-optic比wires快

B. Expanding its production of regenerators will require Light-Line to spend proportionately more on labor and materials.
重点不是在L公司的其它花费上面，也有可能利益和花费同等增加

C. The volume of signals that a fiber-optic cable can carry is several thousand times greater than the volume that can be carried by an electrical wire of similar size. 没否定反而小小支持

D.    There are technologies that enable telecommunications signals to be transmitted without either wire or fiber-optic cable. 否定的位置不对
        完全否定了前提的必需条件
        是偏掉了的否定
        不对

E. Several manufacturers are developing regenerator technologies that will allow signals to be transmitted many times farther than at present before requiring regeneration. 直接站在regeneration的点上，把利益在使用regeneration前就被打断，使得L公司的利益不可能↑

结论是说LL会成为最benefit的，削弱就是说别人会产生一种技术，使得人家的regenerator比LL的更有效率，那么就没人买LL的产品了。

关键是proportionately这个词语吧……成比例，如果不大于1就有利可图……

-- by 会员 lonelyunited (2010/9/4 15:27:23)

选E ，D无关，因为题目已经说在如果开始铺设的情况之下，所以关于是否因其他技术而铺设的讨论都是无关的，举个例子，如果我很饿，我能吃3碗饭。你能用“早上吃的很多，所以不会很饿”来反驳我吗？B咋一看很像答案，ETS的思路一般讨论到收益总会牵扯到成本，但是题目问得的是是否是最受益的公司之一，既然gmat是考察是否具有管理潜质，让我们设想一下情景，现在我是公司的中层经理，总裁要听上一个项目是否会最受益的建议，我告诉总裁说上这个项目需要相应的投入成本，估计这个答案马上就被扔垃圾桶了，我也离被降职不远了。如果要使这个建议看起来合理，我认为需要在B选项再加一条“成本的增加会大大抵消我们可能获得的利润”，这样B才合理。让我们在回头看一下原文的逻辑，因为光纤远距离通信需要中继器，所以如果铺设光纤远距离的网络可以使LL公司-作为这个中继器的领导生厂商-受益。其实它想表达的就是，如果这样，那市场就需要更多的中继器，所以受益。那我们要做的就是，如果这样，市场也未必需要更多的LL的中继器，就起到削弱的作用了。E正好表达了这个意思，它说有些公司的新技术使信号传输的更远了，这就说明这些公司的产品比LL公司更有竞争力了。削弱了成为最受益公司的可能性，5个里面只有这个总裁他老人家还会花个5分钟想一想，呵呵。（当然这个想法也不是十全十美，还要比较价格什么的）。不过按照gmat的做题原则，选最好的，不是选最无懈可击的，E还是首选。如果做的快一点，按照相关与否的原则，正如19楼所言，farher和long-distance是相关词。

-- by 会员 wwwtied (2007/8/30 13:38:00)