棱长为2的封闭的正方体,如图所示,一只昆虫从顶点A爬到一棱的中点B,则这只昆虫爬行的最短距离是多少有选项的 A.2根号2+1 B.2根号2+2 C.3 D.根号17 请说明怎么做
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![棱长为2的封闭的正方体,如图所示,一只昆虫从顶点A爬到一棱的中点B,则这只昆虫爬行的最短距离是多少有选项的 A.2根号2+1 B.2根号2+2 C.3 D.根号17 请说明怎么做](/uploads/image/z/2406149-53-9.jpg?t=%E6%A3%B1%E9%95%BF%E4%B8%BA2%E7%9A%84%E5%B0%81%E9%97%AD%E7%9A%84%E6%AD%A3%E6%96%B9%E4%BD%93%2C%E5%A6%82%E5%9B%BE%E6%89%80%E7%A4%BA%2C%E4%B8%80%E5%8F%AA%E6%98%86%E8%99%AB%E4%BB%8E%E9%A1%B6%E7%82%B9A%E7%88%AC%E5%88%B0%E4%B8%80%E6%A3%B1%E7%9A%84%E4%B8%AD%E7%82%B9B%2C%E5%88%99%E8%BF%99%E5%8F%AA%E6%98%86%E8%99%AB%E7%88%AC%E8%A1%8C%E7%9A%84%E6%9C%80%E7%9F%AD%E8%B7%9D%E7%A6%BB%E6%98%AF%E5%A4%9A%E5%B0%91%E6%9C%89%E9%80%89%E9%A1%B9%E7%9A%84+A.2%E6%A0%B9%E5%8F%B72%2B1++B.2%E6%A0%B9%E5%8F%B72%2B2+++C.3++++D.%E6%A0%B9%E5%8F%B717+++++++%E8%AF%B7%E8%AF%B4%E6%98%8E%E6%80%8E%E4%B9%88%E5%81%9A)
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