8×7-2=54米
一根鐵絲,8M8M的截余6M,7M7M的截余5M,這根鐵絲最短(54)米謝了不客氣,要解釋請追問
一根鐵絲,8M8M的截余6M,7M7M的截余5M,這根鐵絲最短()米
一根鐵絲,8M8M的截余6M,7M7M的截余5M,這根鐵絲最短()米
其他人氣:441 ℃時間:2020-01-30 07:01:23
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