GWD24逻辑混乱的 一道题

呼啸700

2. GWD-27-Q2:

Electronic computer chips made of tiny silicon wafers now regularly contain millions of electronic switches.Unfortunately, electronic switches that are this small cannot withstand intense radiation.Micro-Mechanics plans to produce a chip that, because it uses only microscopic mechanical switches, will be invulnerable to radiation damage.The switches will, however, be slower than electronic switches and the chip will contain only 12,000 switches.

For there to be a market for Micro-Mechanics’ chip as a result of the apparent advantage described above, each of the following would have to be true EXCEPT:

1. There will be applications in which the speed attainable by an electronic switch is not essential.
   
   
2. Switches used on electronic chips that contain only 12,000 switches are more vulnerable to radiation damage than the switches on Micro-Mechanics’ chip will be.
   
   
3. There will be applications for computer chips in environments where the chips may have to survive intense radiation.
   
   
4. Some devices in which computer chips will be used will have other components that will be able to function during or after exposure to radiation.
   
   
5. Manufacturers are able to protect electronic computer chips against exposure to intense radiation, where this protection is necessary.(答案)
   这个题到底是 要问 支持 机械芯片好 还是 削弱机械芯片好 我已经puzzledNN 们 帮忙解释一下
   
   

络腮虎子

一点个人观点：must be true可以分为两类：一、题干给premise，选项是结论，这种情况选项中的结论是题干能100%推出来的；二，题干中或者问题中给出了结论，选项内容更类似assumption（依据manhattan CR，assumption是没有明确说出但是必须为真的），本题属于这种类型。对于本题这种类型，可以采用manhattan CR 中提到的negate technique，也就是说对选项进行否定，如果这个否定导致原文的结论不成立，那么这个选项就是一个assumption。把这种方法应用到本题，依次对五个选项进行否定，可以看出A、B、C、D都会因为这个否定而使得原文的结论（there to be a market for MM's chip because of this advantage)不成立，所以A、B、C、D都是must be true的，只有选E。

sdfzcjy

我不是NN，sdcar2010才是咯，呵呵，有机会可以交流交流

呼啸700

NN你好 我想问你一些关于解题思路的问题 我有时候 遇到一个题 读完以后 真的很难抓到 重点 。你在做逻辑题的时候 是带着一种什么感觉来做的 能给我一些启发吗

sdfzcjy

呵呵，明白你的意思了，感觉上来说，文章是要用the new的替代the old，而E说的感觉就是可以不用the new，属于驳斥

sdcar2010

The reason that the manufacturer wants to replace the electronic chips is because the electronic chips cannot withstand radiation. If the manufacturer figured out a way to shield the electronic chips from the intense radiation, it would not be necessary for the manufacturer to find a replacement for the electronic chip. It makes perfect sense based on the stimulus. Thus, E weakens the proposal to develop the new mechanical chip.

sdfzcjy

可是 暴没暴露 跟 受没受到intense radiation 没有直接关系啊，文章也没有在这块做出联系

sdcar2010

The stimulus mentions "withstand intense radiation." Therefore intense radiation is within the scope of the argument.

sdfzcjy

Electronic computer chips made of tiny silicon wafers now regularly contain millions of electronic switches.Unfortunately, electronic switches that are this small cannot withstand intense radiation.Micro-Mechanics plans to produce a chip that, because it uses only microscopic mechanical switches, will be invulnerable to radiation damage.The switches will, however, be slower than electronic switches and the chip will contain only 12,000 switches.
文章说的是chips里面有electronic switches，electronic switches不能承受intense radiation，然后就计划生产a chip ，这玩意只用microscopic mechanical switches能承受intense radiation，然后又说了上面两种switches的速度问题，和一个chip里面有多少switches的事情。
也就是说，文章说的是
1.chips里面有electronic switches和microscopic mechanical switches的问题，
2.两种switches能不能承受intense radiation的问题
3.两种switches的速度原因
4.chips里面switches的数量问题
5.到底是用electronic switches还是microscopic mechanical switches的问题
与上面这些无关的都是无关不沾边选项

For there to be a market for Micro-Mechanics’ chip as a result of the apparent advantage described above, each of the following would have to be true EXCEPT:

1.There will be applications in which the speed attainable by an electronic switch is not essential.

2.Switches used on electronic chips that contain only 12,000 switches are more vulnerable to radiation damage than the switches on Micro-Mechanics’ chip will be.

3.There will be applications for computer chips in environments where the chips may have to survive intense radiation.

4.Some devices in which computer chips will be used will have other components that will be able to function during or after exposure to radiation.

5.Manufacturers are able to protect electronic computer chips against exposure to intense radiation, where this protection is necessary.(答案)
这选项说的是，生产商能不能保护chips不暴露在intense radiation的问题，chips暴不暴露的问题，跟前面说的无关，所以就是它了

据GWD所说，GMAT主要考察逻辑，虽然题目大多问的都是驳斥、支持、假设，但选项基本首先考察相关不相关（一般可以排除2-3个左右，甚至有直接排除4个的），再考察驳斥支持假设

sdcar2010

each of the following would have to be true EXCEPT means 4 answers are MUST BE TRUE answers while the fifth answer is either must be false or could be false.

In nowhere of the stimulus can you find support for answer choice E. Then E could be false, thus the correct answer in this case.

E completely removes radiation as a threat to chips. Thus it removes the need and the advantage to have the new chip.