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A．To escape from their enemies.
B．To catch more food.
C．To use their developing flippers.
D．To swim.
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The majority of university professors prefer the traditional way of lecturing in the belief that ________.
A．it draws the close attention of the students
B．it conforms in a way to the design of the Creator
C．it helps students to comprehend abstract theories more easily
D．it presents course content in a scientific and objective manner
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