一个边长为a的正方形花园,四周修一条宽为b的小路,花园剩下的面积为_____ 用代数式解两个进水管向水池灌水 (1)单独开甲管,a小时可灌满,则一小时能灌________;(2)单独开乙管,b小时可灌满,
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![一个边长为a的正方形花园,四周修一条宽为b的小路,花园剩下的面积为_____ 用代数式解两个进水管向水池灌水 (1)单独开甲管,a小时可灌满,则一小时能灌________;(2)单独开乙管,b小时可灌满,](/uploads/image/z/10007067-3-7.jpg?t=%E4%B8%80%E4%B8%AA%E8%BE%B9%E9%95%BF%E4%B8%BAa%E7%9A%84%E6%AD%A3%E6%96%B9%E5%BD%A2%E8%8A%B1%E5%9B%AD%2C%E5%9B%9B%E5%91%A8%E4%BF%AE%E4%B8%80%E6%9D%A1%E5%AE%BD%E4%B8%BAb%E7%9A%84%E5%B0%8F%E8%B7%AF%2C%E8%8A%B1%E5%9B%AD%E5%89%A9%E4%B8%8B%E7%9A%84%E9%9D%A2%E7%A7%AF%E4%B8%BA_____+%E7%94%A8%E4%BB%A3%E6%95%B0%E5%BC%8F%E8%A7%A3%E4%B8%A4%E4%B8%AA%E8%BF%9B%E6%B0%B4%E7%AE%A1%E5%90%91%E6%B0%B4%E6%B1%A0%E7%81%8C%E6%B0%B4+%EF%BC%881%29%E5%8D%95%E7%8B%AC%E5%BC%80%E7%94%B2%E7%AE%A1%2Ca%E5%B0%8F%E6%97%B6%E5%8F%AF%E7%81%8C%E6%BB%A1%2C%E5%88%99%E4%B8%80%E5%B0%8F%E6%97%B6%E8%83%BD%E7%81%8C________%EF%BC%9B%EF%BC%882%EF%BC%89%E5%8D%95%E7%8B%AC%E5%BC%80%E4%B9%99%E7%AE%A1%2Cb%E5%B0%8F%E6%97%B6%E5%8F%AF%E7%81%8C%E6%BB%A1%2C)
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