一个空瓶子用天平称其质量为300g,再将此瓶子装满水,称的质量为900g把水倒掉装满另一种油,称的总质量为80
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![一个空瓶子用天平称其质量为300g,再将此瓶子装满水,称的质量为900g把水倒掉装满另一种油,称的总质量为80](/uploads/image/z/807628-4-8.jpg?t=%E4%B8%80%E4%B8%AA%E7%A9%BA%E7%93%B6%E5%AD%90%E7%94%A8%E5%A4%A9%E5%B9%B3%E7%A7%B0%E5%85%B6%E8%B4%A8%E9%87%8F%E4%B8%BA300g%2C%E5%86%8D%E5%B0%86%E6%AD%A4%E7%93%B6%E5%AD%90%E8%A3%85%E6%BB%A1%E6%B0%B4%2C%E7%A7%B0%E7%9A%84%E8%B4%A8%E9%87%8F%E4%B8%BA900g%E6%8A%8A%E6%B0%B4%E5%80%92%E6%8E%89%E8%A3%85%E6%BB%A1%E5%8F%A6%E4%B8%80%E7%A7%8D%E6%B2%B9%2C%E7%A7%B0%E7%9A%84%E6%80%BB%E8%B4%A8%E9%87%8F%E4%B8%BA80)
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