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数学
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用一根长7米的绳子围着一棵树绕3圈,还剩0.7米.树绕绳处的直径大约是多少米?
人气:240 ℃ 时间:2020-04-16 21:23:57
解答
(7-0.7)÷3÷π答案!≈0.6687m≈0.6687msorry.额
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