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题型:填空题 题类:常考题 难易度:困难
多边形面积(复习)6861 10
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67.58-(17.58+4.32) 1.25×2.5×(4×0.8)
7.6×3.4+6.6×7.6 4.2÷[(5.92-4.52)×0.2]
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