单项选择题

Questions 22 to 25 are based on the conversation you have just heard.

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 rain fall.

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单项选择题
A. She hasn’t been getting adequate grades.B. She hasn’t been attending class every day.C. She has been coming to school much too early.D. She has been overloading herself With homework.

A. She hasn’t been getting adequate grades.
B. She hasn’t been attending class every day.
C. She has been coming to school much too early.
D. She has been overloading herself With homework.
单项选择题
A. At Harvard. B. At West Point.C. At the Carlisle Indian School. D. At the Olympic Games held in Stockholm.
A. At Harvard.
B. At West Point.
C. At the Carlisle Indian School.
D. At the Olympic Games held in Stockholm.
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