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TOEFL
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Listening practice
/ Section 3P4K
Listen to an Academic Talk
Listen to part of a talk in a nutrition class.
Listen
28. What does the speaker imply about the medical opinion that developed later?
A
It was never widely accepted
B
It was deliberately concealed by the navy
C
It came from the polar expeditions themselves
D
It was based on the failure of a remedy nobody understood