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A cat suddenly jumped out from the shaded area.
灯影下忽然蹿出只猫来。
youdao
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What fraction of the area of ABC is the area of the shaded part?
微积分学中有关积分与它在微分方程和测定面积，体积等的应用的部分。
youdao
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What fraction of the area of ABC is the area of the shaded part?
微积分学中有关积分与它在微分方程和测定面积，体积等的应用的部分。
youdao