Scientists have developed glass fibers as thin as human hair which are designed to carry light signals.

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问题 Scientists have developed glass fibers as thin as human hair which are designed to carry light signals.

选项 A、科学家发展出一种玻璃纤维,轻得像人的头发丝一样,可以用来设计轻型的信号装置。
B、科学家制造出一种玻璃纤维,比人的头发丝还细,这种设计是用来传递光信号的
C、科学家开发出像人的头发一样细的玻璃纤维来传输光信号。
D、科学家研制出跟人的头发丝似的玻璃纤维,用在光导信号的设计上。

答案C

解析
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