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TOEFL
/
Listening practice
/ Section 59A5
Listen to an Academic Talk
Listen to a talk in an engineering class.
Listen
45. What happened when the rope broke on an elevator with Otis's device?
A
An alarm warned the passengers.
B
A spring pushed metal arms into teeth on the sides of the shaft.
C
A second rope held the platform.
D
The platform slowly dropped to the bottom.