6.4×(12.5+5)
=0.8*8*(12.5+5)
=0.8*(8*12.5+8*5)
=0.8*(100+40)
=0.8*140
=112
6.4×(12.5+5)的遞等式?
6.4×(12.5+5)的遞等式?
很急!
很急!
數(shù)學人氣:351 ℃時間:2020-06-12 21:30:45
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