Some advanced materials are an old standard with a new twist. The newest fiberopt

Some advanced materials are an old standard with a new twist. The newest fiberoptic cables that carry telephone calls cross-country are made of glass so transparent that a piece of 100 miles thick is clearer than a standard window pane.

_______________________________________________________________________________

您可能感兴趣的试题

Would you mind ______ some dunnage materials for us ？

答案解析
听力原文：（A) Some building materials are piled up on the ground.（B) A brick wall is being

答案解析
Some—such as liquid oxygen—are so cold that they embrittle many constructional materials a

答案解析
The various pumps and lines are _____ to some extent so that each pump can act as an alter

答案解析
The journalist is collecting 【material】 for an ar

答案解析
The advance of globalization is challenging some

答案解析
There are some things about myself that I really like.First of all I always make an e

答案解析