单项选择题

Passage One Questions 21 to 23 are based on the passage you have just heard.

A．In a lecture hall.
B．At a radio station.
C．At the doctor’ s office.
D．In a biological lab.
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单项选择题
A．Thirty-six thousand million dollars.B．Less than thirty-six thousand million dollars.C．One hundred thousand million dollars or more.D．Less than one hundred thousand million dollars.
A．Thirty-six thousand million dollars.
B．Less than thirty-six thousand million dollars.
C．One hundred thousand million dollars or more.
D．Less than one hundred thousand million dollars.
单项选择题
A．Sell his philosophy books to the woman.B．Keep his books from the philosophy class.C．Visit the library for some reference material.D．Return his philosophy books to the reference room.
A．Sell his philosophy books to the woman.
B．Keep his books from the philosophy class.
C．Visit the library for some reference material.
D．Return his philosophy books to the reference room.
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