单项选择题

Questions 22～25 are based on the following telephone interview. How was the weight used

A．To check the accuracy of scales.
B．To calculate the density of other metals.
C．To observe changes in the atmosphere.
D．To measure amounts of rainfall.
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单项选择题
What are they talking about
A．A big travel agency.
B．A job opportunity.
C．An inexperienced salesman.
D．A position as general manager.
单项选择题
What was the temperature at Ann Arbor airport
A．79 Degrees F.
B．74 Degrees F.
C．75 Degrees F.
D．73 Degrees F.
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