单项选择题

Passage One Questions 26 to 28 are based on the passage you have just heard.

A．Because they have a smooth surface.
B．Because they are very expensive.
C．Because they are very hard.
D．Because they turn very. well.
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单项选择题
A．She has never been to Gettysburg.B．She took a political science course.C．Her family still goes on vacation together.D．She’s interested in the United States Civil War.
A．She has never been to Gettysburg.
B．She took a political science course.
C．Her family still goes on vacation together.
D．She’s interested in the United States Civil War.
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