学校上个月节约用水8吨,本月节约用水4吨,上个月节约用水量是本月的多少倍?7p3~+O0?2C7a.Z*e.G,?
算式:提示8e*g2R)t,_2\5?2S2s*v7p3~+O0?2C7a.Z*e.G,?
答:上个月节约用水量是本月的4S;]:~:H,d7~(@倍。7p3~+O0?2C7a.Z*e.G,?