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TOEFL
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Listening practice
/ Section GDMD
Listen to an Academic Talk
Listen to part of a talk in a materials science class.
Listen
26. According to the speaker, what makes glass an amorphous solid?
A
Its molecules cool into a regular repeating pattern.
B
Its molecules stop moving before they can organise.
C
It contains more than one kind of molecule.
D
It is cooled more slowly than most liquids.