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/
Listening practice
/ Section 7FGS
Listen to an Academic Talk
Listen to part of a talk in a materials engineering class.
Listen
25. What is the main point of the talk?
A
Repeated bending damages metal in a way a single load test does not reveal.
B
Paperclips are made from an unusually weak metal.
C
Metals become stronger each time they are bent.
D
Cracks in metal always begin deep inside the material rather than at the surface.