According to the passage, people started to make glass ______. One of the extraordinary qualities of glass is that it can carry

admin2009-04-15 56

问题 According to the passage, people started to make glass ______.
One of the extraordinary qualities of glass is that it can carry ______.

选项 A、light signals
B、sound signals
C、electric signals
D、any signals

答案A

解析见文章第二段第二句“Scientists have developed glass fibres as thin as human hair which are de signed to carry light signals”。

转载请注明原文地址:https://kaotiyun.com/show/758d777K

公共英语二级笔试

相关试题推荐

随机试题

最新回复(0)