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TOEFL
/
Listening practice
/ Section TZ4A
Listen to an Academic Talk
Listen to part of a talk in an architectural history class.
Listen
29. What is the main point of the talk?
A
Early lifts were unsafe and frequently failed
B
Steel frames were adopted more slowly than is usually claimed
C
Cities grew upwards because land became expensive
D
The safety brake, not the frame alone, made tall buildings worth building