4个
2 2 3
2 3 4
2 4 5
3 4 5
用2、2、3、4、5长的5根木棍中的3根,可以组成(?)个三角形,
用2、2、3、4、5长的5根木棍中的3根,可以组成(?)个三角形,
数学人气:783 ℃时间:2019-12-16 19:52:57
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