用一个长方体木块,一根细线,两个烧杯,足量的水,测量某种食用油的密度要求写出主要步骤,写出求密度的表达式
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![用一个长方体木块,一根细线,两个烧杯,足量的水,测量某种食用油的密度要求写出主要步骤,写出求密度的表达式](/uploads/image/z/1462215-39-5.jpg?t=%E7%94%A8%E4%B8%80%E4%B8%AA%E9%95%BF%E6%96%B9%E4%BD%93%E6%9C%A8%E5%9D%97%2C%E4%B8%80%E6%A0%B9%E7%BB%86%E7%BA%BF%2C%E4%B8%A4%E4%B8%AA%E7%83%A7%E6%9D%AF%2C%E8%B6%B3%E9%87%8F%E7%9A%84%E6%B0%B4%2C%E6%B5%8B%E9%87%8F%E6%9F%90%E7%A7%8D%E9%A3%9F%E7%94%A8%E6%B2%B9%E7%9A%84%E5%AF%86%E5%BA%A6%E8%A6%81%E6%B1%82%E5%86%99%E5%87%BA%E4%B8%BB%E8%A6%81%E6%AD%A5%E9%AA%A4%2C%E5%86%99%E5%87%BA%E6%B1%82%E5%AF%86%E5%BA%A6%E7%9A%84%E8%A1%A8%E8%BE%BE%E5%BC%8F)
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