换算~l和ml100ml药兑水2000l那80ml水加多少药?是80ml水~不是80ml药~
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换算~l和ml100ml药兑水2000l那80ml水加多少药?是80ml水~不是80ml药~
换算~l和ml
100ml药兑水2000l
那80ml水加多少药?
是80ml水~不是80ml药~
换算~l和ml100ml药兑水2000l那80ml水加多少药?是80ml水~不是80ml药~
100ml/2000L=x/80ml
x=1/250ml
4ml
1600l
100×80÷2000=4ml
4ml
4啊