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题型:填空题 题类:常考题 难易度:困难
(两个知识点混在一起)3190 10
75,3,74,3,73,3,{#blank#}1{#/blank#},{#blank#}2{#/blank#}。
90,85,80,75,70,{#blank#}1{#/blank#},{#blank#}2{#/blank#},{#blank#}3{#/blank#},{#blank#}4{#/blank#}.
1,2,4,8,{#blank#}1{#/blank#},32,{#blank#}2{#/blank#},128…
2,4,6,{#blank#}1{#/blank#},{#blank#}2{#/blank#}.
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