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题型：作图题 题类：常考题 难易度：困难
角的初步认识 2836 10
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{#blank#}2{#/blank#}个直角
{#blank#}3{#/blank#}个钝角
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{#blank#}2{#/blank#}个
{#blank#}3{#/blank#}个
{#blank#}4{#/blank#}个
试题篮
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{#blank#}2{#/blank#}个
{#blank#}3{#/blank#}个