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1 从一道竞赛题谈起 题目:如图1所示,甲、乙水池装有相同体积的水。它们的底部安有孔径相同的阀门,当阀门同时完全
1 From a competition question Topic: As shown in Figure 1, A and B tanks contain the same volume of water. They have a valve with the same hole diameter at the bottom, when the valve is complete