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TOEFL
/
Listening practice
/ Section Q8ZJ
Listen to an Academic Talk
Listen to a talk in an economics class.
Listen
42. According to the professor, why is it hard for a new competitor to succeed?
A
New products usually have fewer features.
B
People do not want to move to a service their friends do not use.
C
Users must pay to switch services.
D
Large companies buy all new competitors.