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题型:单选题 题类:常考题 难易度:普通
7的乘法口诀1795 11
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65,60,55,{#blank#}1{#/blank#},{#blank#}2{#/blank#},{#blank#}3{#/blank#},{#blank#}4{#/blank#},{#blank#}5{#/blank#},{#blank#}6{#/blank#},{#blank#}7{#/blank#},{#blank#}8{#/blank#},{#blank#}9{#/blank#}5,0.
4×{#blank#}1{#/blank#}<30 {#blank#}2{#/blank#}×8<40
9×{#blank#}3{#/blank#}<46 {#blank#}4{#/blank#}×5<37
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