楼主: 龚永明魔方
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你能严格证明红蓝二个三角形不能拼成正方形吗? |
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鲁班锁吧http://tieba.baidu.com/f?kw=%C2%B3%B0%E0%CB%F8
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魔方爱好者,三字班小朋友。
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鲁班锁吧http://tieba.baidu.com/f?kw=%C2%B3%B0%E0%CB%F8
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回复 68# 的帖子
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我也开网店了= =囧shop61450023.taobao.com
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鲁班锁吧http://tieba.baidu.com/f?kw=%C2%B3%B0%E0%CB%F8
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