考博考试

【单选题】 According to the passage glass cools and becomes rigid differently from metals because ______.
A．it has an unusually low melting temperature
B．it does not set up a network of inter3ocking crystals
C．it has a random molecular structure of a liquid
D．it is made from a mixture of silica, lime, and soda

网考网参考答案：B
网考网解析：
由第二段倒数第二句话可以得到答案。 查看试题解析出处>>