单项选择题

A. Less than 30 minutes. B. From 30 to 45 minutes.
C. At least 45 minutes. D. More than 30 minutes.
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单项选择题
A. She thinks that he should plan his money more carefully. B. She thinks that he should buy a convertible. C. She thinks that he should ask Barbara for advice. D. She wants him to manage her money.
A. She thinks that he should plan his money more carefully.
B. She thinks that he should buy a convertible.
C. She thinks that he should ask Barbara for advice.
D. She wants him to manage her money.
单项选择题
A. To check the accuracy of scales. B. To calculate the density of other metal. C. To observe changes in the atmosphere. D. To measure amounts of rainfall.
A. To check the accuracy of scales. B. To calculate the density of other metal.
C. To observe changes in the atmosphere. D. To measure amounts of rainfall.
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