1、某机械厂造一种轴承,每套轴承成本由2.3元降低到0.73元,降低了百分之几?2、甲比乙少百分之三十七点五,乙比甲多百分之失误,乙比甲少百分之几?3、两个班共分一批树苗,一班分的比总数的
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![1、某机械厂造一种轴承,每套轴承成本由2.3元降低到0.73元,降低了百分之几?2、甲比乙少百分之三十七点五,乙比甲多百分之失误,乙比甲少百分之几?3、两个班共分一批树苗,一班分的比总数的](/uploads/image/z/3014354-2-4.jpg?t=1%E3%80%81%E6%9F%90%E6%9C%BA%E6%A2%B0%E5%8E%82%E9%80%A0%E4%B8%80%E7%A7%8D%E8%BD%B4%E6%89%BF%2C%E6%AF%8F%E5%A5%97%E8%BD%B4%E6%89%BF%E6%88%90%E6%9C%AC%E7%94%B12.3%E5%85%83%E9%99%8D%E4%BD%8E%E5%88%B00.73%E5%85%83%2C%E9%99%8D%E4%BD%8E%E4%BA%86%E7%99%BE%E5%88%86%E4%B9%8B%E5%87%A0%3F2%E3%80%81%E7%94%B2%E6%AF%94%E4%B9%99%E5%B0%91%E7%99%BE%E5%88%86%E4%B9%8B%E4%B8%89%E5%8D%81%E4%B8%83%E7%82%B9%E4%BA%94%2C%E4%B9%99%E6%AF%94%E7%94%B2%E5%A4%9A%E7%99%BE%E5%88%86%E4%B9%8B%E5%A4%B1%E8%AF%AF%2C%E4%B9%99%E6%AF%94%E7%94%B2%E5%B0%91%E7%99%BE%E5%88%86%E4%B9%8B%E5%87%A0%3F3%E3%80%81%E4%B8%A4%E4%B8%AA%E7%8F%AD%E5%85%B1%E5%88%86%E4%B8%80%E6%89%B9%E6%A0%91%E8%8B%97%2C%E4%B8%80%E7%8F%AD%E5%88%86%E7%9A%84%E6%AF%94%E6%80%BB%E6%95%B0%E7%9A%84)
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