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TOEFL
/
Listening practice
/ Section 4V75
Listen to an Academic Talk
Listen to part of a talk in an economics class.
Listen
44. What is the talk mainly about?
A
How the QWERTY keyboard was originally designed
B
Why a widely adopted standard can persist even if better ones exist
C
How typing speed is measured in laboratory studies
D
Why economists disagree about the history of technology