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由題意,y=|x|和y=2圍成圖中陰影部分的圖形,旋轉體為一個圓柱挖去兩個相同的共頂點的圓錐.∵V圓柱=π•22•4=16π,2V圓錐=2×π×22×2=16π3∴所求幾何體體積為16π-16π3=32π3.故選D.
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