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18（12分）如图，d为圆锥的顶点，o是圆锥底面的圆心，ae为底面直径，ae=ad 是底面的内2020高考全国一卷理数答案和在线做题 Template






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tomski18（12分）如图，d为圆锥的顶点，o是圆锥底面的圆心，ae为底面直径，ae=ad 是底面的内2020高考全国一卷理数答案和在线做题 coloring
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