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TOEFL
/
Listening practice
/ Section 5BCP
Listen to an Academic Talk
Listen to part of a talk in a geography class.
Listen
27. Why does the speaker mention starting a river straight in a laboratory flume?
A
To show that bending occurs even without features in the landscape
B
To explain how sediment is measured in experiments
C
To argue that natural rivers behave differently from models
D
To demonstrate that bends take centuries to develop