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题型:单选题 题类: 难易度:容易
西师大版六年级上册数学第四单元比和按比例分配基础练习
1.32:3.3
= {#blank#}1{#/blank#}:{#blank#}2{#/blank#}
= {#blank#}3{#/blank#}
① ∶
②0.4∶20
③ ∶0.75
④36∶15
⑤ ∶
⑥5.6∶4.2
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