单项选择题

One of the extraordinary qualities of glass is that it can carry ______.

A．light signals
B．sound signals
C．electric signals
D．any signals
<上一题 目录 下一题>
热门 试题

单项选择题
According to the passage, people started to make glass ______.
A．4,500 years ago
B．nearly 4,500 years ago
C．less than 4,500 years ago
D．no less than 4,500 years ago
单项选择题
The young soldier ______.
A．wrote a letter to his mother himself
B．was in hospital for a long time
C．couldn't say any words when he saw the president
D．was badly hurt in the Civil War
相关试题