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![求比值 1.20:8=( ) 2.4.5:7.5=( ) 化简比 1求比值1.20:8=( )2.4.5:7.5=( )化简比1.110:55=( )2.0.75:4又2分之1=( )](/uploads/image/z/209963-11-3.jpg?t=%E6%B1%82%E6%AF%94%E5%80%BC+1.20%3A8%3D%28+%29+2.4.5%EF%BC%9A7.5%EF%BC%9D%28+%29+%E5%8C%96%E7%AE%80%E6%AF%94+1%E6%B1%82%E6%AF%94%E5%80%BC1.20%3A8%3D%28+%292.4.5%EF%BC%9A7.5%EF%BC%9D%28+%29%E5%8C%96%E7%AE%80%E6%AF%941.110%3A55%EF%BC%9D%EF%BC%88+%EF%BC%892.0.75%EF%BC%9A4%E5%8F%882%E5%88%86%E4%B9%8B1%EF%BC%9D%EF%BC%88+%EF%BC%89)
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