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TOEFL
/
Listening practice
/ Section LYZT
Listen to an Academic Talk
Listen to part of a talk in a plant science class.
Listen
27. Why does the speaker discuss what would happen if the angle were a half or a third of a turn?
A
To show that such plants exist but are rare
B
To explain why the angle has to avoid simple fractions
C
To describe an earlier theory that has been rejected
D
To show how the angle is measured in practice