题目

—Can you tell me        ? —Two weeks ago． A．when you bought the toys                 B．who did you buy-the toys for C．how much the toys cost                             D．how many toys did you buy 答案：A（2010?连城县模拟）一个圆锥形粮囤，从里面量得底面直径为7米，高4米．如果每立方米稻谷重350千克．这个粮囤能装下多少千克稻谷？