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【简答题】
调和平均数是根据______来计算的，所以又称为______平均数。
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举一反三
【单选题】听力原文：We should take some of the furniture out of here, or maybe we should look for a bigger apartment. What does the speaker mean?
A.
Our apartment has too much furniture in it.
B.
Our furniture is uncomfortable.
C.
Some of our furniture hasn't arrived yet.
【单选题】Man: We're almost finished with the project. Maybe we should stop for a break now. Woman: Actually, I would prefer to keep going. Question: What does the woman mean?
A.
She would like to stop for a break.
B.
She actually has no preference.
C.
She wants to go home.
D.
She wants to continue on with the project.
【单选题】假设存供给量和价格水平不变,货币需求为收入和利率的函数,则收入增加时( )。
A.
存货需求增加，利率上升
B.
存货需求增加，利率下降
C.
货币需求减少，利率上升
D.
货币需求减少，利率下降
【简答题】关键控制点越多越好
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