GWD27-2

conquergmat

Electronic computer chips made of tiny silicon wagers 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 wil 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:

A There will be applications in which the speed attainable by anm electronic switch is not essential

B Switches used on electronic chips that contain only 12,000 switches are more vulnerable to radiation damage than the switches on Micro-mechanics' chips may have to survive intense radiantion

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

D 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

E Manufacturers are able to protect electronic computer chips against exposure to intense radiation, where this protection is necessary.

the correct answer is E.

Why D is not correct?

conquergmat

ding

yaoyao99

D means other parts will still have to be functional, post radiation exposure, besides the chip.  It is a valid assumption because if the chip is the only functional part after the radiation, then it'll be useless anyway.

shzzhengfan

我的理解是，既然装置里有其他要求能survive radiation的component,　那么这个装置也要能忍受辐射，因此也要求chip能忍受辐射，这正是这种新芯片的优势。D错。

rosmarine

答案E没问题，但是B有什么问题吗？看着怪怪的。

[此贴子已经被作者于2006-6-3 16:07:53编辑过]

香香茶

D和E分别都是什么意思，我怎么看讨论越看越糊涂，谁给讲讲吧！

sunjie38

AC应该都可以理解

B中表明M的chip好, D中表明用M的chip没有副作用, 不会影响其他component

而E是无关选项

香香茶

up，期待NN现身！

wycg

D 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

E Manufacturers are able to protect electronic computer chips against exposure to intense radiation, where this protection is necessary.

D说的是computer 需要一些部件能够在radiation下工做正常.也就是说文章的那个new switch 是有用的.

E说的是Manufacturers有办法(注意没说是那个new switch)能够保护chips在radiation下不受损. 这不是说new switch 是有用的,而是在说new switch 可能没有用武之地了.

要仔细体会DE说的差别.

所以E是对的.

[此贴子已经被作者于2006-6-9 23:18:22编辑过]

香香茶

谢谢斑竹，关于E的解释我看懂了，但是D还是不明白。

D直译过来是说，芯片用的某些装置里会有其它的一些部件，也能够在受到辐射时或者之后正常工作。

既然都能够正常工作了，那要这个new switch有什么用呢？不正好说明了这个new switch没有advantage吗？

还是其它的意思呢？我想应该是我理解错了吧。但是那个be able to不是表能力吗？