GWD-31-Q16 求大牛牛们解答，以前的帖子都没看见详细解答，谢谢啦！~

hoho719

1.???GWD-31-Q16
In recent years, networks of fiber-optic cable have been replacing electrical wire for transmitting telecommunications signals. Signals running through fiber-optic cablesdeteriorate, 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.

答案是E 题干是看懂了，就是E选项中的regenerator 和 regerneration的关系，意思搞不明白。。。希望大家帮忙啦@~

hoho719

谢谢NN~以后有问题还请多多帮助~！

sdcar2010

the signals MUST be run through a piece of equipment called a regenerator BEFORE being transmitted father

hoho719

可是题干只是说L-L是one of the most呢…还有什么叫before requiring regeneration还是不太理解呢-_-#

sdcar2010

Regenerator is the machine required for signal regeneration.

If other manufacturers can make a new machine which transmits the signals farther than the machine Light-line made, then the new machine would be in high demand rather than the one made by Light-line.