单项选择题

A．To measure amounts of rainfall.
B．To check the accuracy of scales.
C．To observe changes in the atmosphere.
D．To calculate the density of other metals.
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单项选择题
A．Because she might get a good job later.B．Because she could stay at a hotel at a discountC．Because she might be able to get course credits for her work.D．Because it’d give her a chance to make a lot of money immediately.
A．Because she might get a good job later.
B．Because she could stay at a hotel at a discount
C．Because she might be able to get course credits for her work.
D．Because it’d give her a chance to make a lot of money immediately.
单项选择题
A．To persuade you to try out new ideas.B．To stress the importance of discussion.C．To introduce two main forms of teaching.D．To make you believe that seminar is more helpful.
A．To persuade you to try out new ideas.
B．To stress the importance of discussion.
C．To introduce two main forms of teaching.
D．To make you believe that seminar is more helpful.
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