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  3. It is reported that scientists have developed glass fibers as thin as human hair

It is reported that scientists have developed glass fibers as thin as human hair

游客2023-09-22  49
问题 It is reported that scientists have developed glass fibers as thin as human hair which are designed    to carry light signals．   
选项 A、据报道，科学家已发展出一种玻璃纤维，轻得像人的头发丝一样，可以用宋设计轻型的信号装置。
B、据报道，科学家已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、据报道，科学家已开发出像人的头发一样细的玻璃纤维来传输光信号。
D、据报道，科学家已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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