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da yi sha long
Pages: 44-
45
Year: 2009
Issue:
10
Journal: School Journal of Mathematics
Abstract: 问:如图1,已知圆柱的底面周长为12 cm,高为8 cm,蚂蚁沿圆柱表面从A点爬到B点的最短路程是多少?老师,我想知道,蚂蚁怎么爬行路程最短呢?
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