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题型:单选题 题类:常考题 难易度:普通
分数的基本性质6601 10
{#blank#}1{#/blank#} {#blank#}2{#/blank#}
a× {#blank#}1{#/blank#}a+ (a>0) 4.32÷ {#blank#}2{#/blank#}4.32×0.25
7.2÷0.5{#blank#}3{#/blank#}7.2×0.5 81.08÷0.2{#blank#}4{#/blank#}810.8÷2
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