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TOEFL
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Listening practice
/ Section MGHD
Listen to an Academic Talk
Listen to part of a talk in a photography class.
Listen
26. According to the speaker, why do moving people leave no trace on an early plate?
A
The plates were not sensitive to warm colors.
B
Photographers waited for the streets to empty.
C
Their image is spread too thinly over the long exposure.
D
The lenses could not focus on nearby objects.