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小升初奥数：马拉松比赛全程42195米，乙和机器人间最远距离？
小升初奥数27/77
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App06:42![小升初奥数： 比较特殊的裂差计算[分母是完全平方数]](http://p3-sign.bdxiguaimg.com/tos-cn-i-0026/aa3a45fa9d0843f4b88a64e6b8e51976~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=2025031308324811C6C8678741B519200F&requestFrom=704&version_code=80402&x-expires=1773361969&x-signature=a1Av9oj%2BLYK2J4DQa9LRoIHQX5I%3D)
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