1.七年纪1、2班共有95人..体育平均达标率是60%,如果七年纪1班达标率是40%..七年级2班达标率是78%..问七年级1、2班各有多少人?2.医院用甲.乙两种原料为手术后的病人配制营养品,每克甲原料含0.5
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![1.七年纪1、2班共有95人..体育平均达标率是60%,如果七年纪1班达标率是40%..七年级2班达标率是78%..问七年级1、2班各有多少人?2.医院用甲.乙两种原料为手术后的病人配制营养品,每克甲原料含0.5](/uploads/image/z/11950972-52-2.jpg?t=1.%E4%B8%83%E5%B9%B4%E7%BA%AA1%E3%80%812%E7%8F%AD%E5%85%B1%E6%9C%8995%E4%BA%BA..%E4%BD%93%E8%82%B2%E5%B9%B3%E5%9D%87%E8%BE%BE%E6%A0%87%E7%8E%87%E6%98%AF60%25%2C%E5%A6%82%E6%9E%9C%E4%B8%83%E5%B9%B4%E7%BA%AA1%E7%8F%AD%E8%BE%BE%E6%A0%87%E7%8E%87%E6%98%AF40%25..%E4%B8%83%E5%B9%B4%E7%BA%A72%E7%8F%AD%E8%BE%BE%E6%A0%87%E7%8E%87%E6%98%AF78%25..%E9%97%AE%E4%B8%83%E5%B9%B4%E7%BA%A71%E3%80%812%E7%8F%AD%E5%90%84%E6%9C%89%E5%A4%9A%E5%B0%91%E4%BA%BA%3F2.%E5%8C%BB%E9%99%A2%E7%94%A8%E7%94%B2.%E4%B9%99%E4%B8%A4%E7%A7%8D%E5%8E%9F%E6%96%99%E4%B8%BA%E6%89%8B%E6%9C%AF%E5%90%8E%E7%9A%84%E7%97%85%E4%BA%BA%E9%85%8D%E5%88%B6%E8%90%A5%E5%85%BB%E5%93%81%2C%E6%AF%8F%E5%85%8B%E7%94%B2%E5%8E%9F%E6%96%99%E5%90%AB0.5)
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