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TOEFL
/
Listening practice
/ Section GTF3
Listen to an Academic Talk
Listen to part of a talk.
Listen
31. Why does the speaker mention a wide pipe?
A
To describe the equipment used to manufacture paper towels.
B
To show that gravity stops acting inside narrow spaces.
C
To suggest that capillary rise is greatest in the widest tube.
D
To distinguish how high water rises from how much a passage can carry.