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题型:单选题 题类:常考题 难易度:普通
混合运算 4795
7×6-{#blank#}1{#/blank#}=18 7×{#blank#}2{#/blank#}+8=43
3×{#blank#}1{#/blank#}<27 5×{#blank#}2{#/blank#}<38 {#blank#}3{#/blank#}×9<26
{#blank#}4{#/blank#} ×4<21 {#blank#}5{#/blank#}×8<16+27 6×{#blank#}6{#/blank#}<93-48
{#blank#}7{#/blank#}×5<20+38-21 {#blank#}8{#/blank#}×4<72-45
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