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如图3-1所示，钢球A和B质量相等，正被绳牵着以的角速度绕竖直轴转动，二球与轴的距离都为。现在把轴上环C下移，使得两球离轴的距离缩减为。则钢球的角速度______。[华南理工大学2010研]
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【单选题】Free Statins With Fast Food Could Neutralize Heart Risk Fast food outlets could provide statin drugs free of 1 so that customers can reduce the heart disease dangers of fatty food, researchers at...
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use
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hate
C.
reject
D.
like
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