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六年级奥数：大正方形边长为8厘米，求阴影面积
六上数学+奥数55/95
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App05:23![六年级奥数：讲透裂和计算中的数学知识[乘1/N]](http://p3-sign.bdxiguaimg.com/tos-cn-i-0026/26c9ead8f4554f76a470a62d9e069dca~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20241118105451FC11338E21967FC2DBCA&requestFrom=704&version_code=80402&x-expires=1763434492&x-signature=Fo77iOMoG5pfblICyEuPXQo9bN0%3D)
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