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TOEFL
/
Listening practice
/ Section 59A5
Listen to an Academic Talk
Listen to a talk in a chemistry class.
Listen
28. Why does the professor recommend chilling an onion before cutting it?
A
Cold air keeps the gas away from the eyes.
B
Chilling removes the sulfur.
C
Cold onions are easier to cut.
D
The chemical reaction is slower when it is cold.