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Author:
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Year:
Volume:
Issue:
kao kao ni
Pages:
36
Year:
1998
Issue:
5
Journal:
Science Initiation
Keyword:
等边三角形
;
相反意见
;
地震区域
;
正立方体
;
黑白球
;
自下而上
;
珍珠球
;
几何体
;
大地震
;
蜻蜓
;
Abstract:
<正> 下图是各用9块等边三角形围成兔和羊的篱笆,有人认为A块面积大,也有人持相反意见,哪你认为哪块大呢?(瞿文华)
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