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题型:填空题 题类:常考题 难易度:普通
整数和小数及运算8554 10
{#blank#}1{#/blank#}×23<180 {#blank#}2{#/blank#}×17<200
{#blank#}3{#/blank#}×67<600 49×{#blank#}4{#/blank#} <300
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