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TOEFL
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Listening practice
/ Section SVDV
Listen to an Academic Talk
Listen to a talk in an engineering class.
Listen
28. According to the professor, why are there several different marks on a ship?
A
Different marks are used for different kinds of cargo.
B
A ship floats at different levels in different kinds of water.
C
Each country uses its own mark.
D
The marks show how old the ship is.