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zuo yi gao kao li ti ji he jie da ti zhong de " qing dao xing ji he ti "
Author(s): 
Pages: 50-51
Year: Issue:  6
Journal: ZHONGXUE SHUXUE ZAZHI(GAOZHONG BAN)

Abstract:  笔者最近研究发现,在最近的几年高考中,立体几何解答题除了考查常见类型的柱锥台、"墙角型"[1]以及"折叠型"等几何体之外,又出现了一些新的特点,如出现了一类"倾倒型几何体",而考生若不加注意和体会,将会导致解题失败.所谓"倾倒型几何体"指的是把棱柱、棱锥以及棱台等常见的多面体或旋转体"推倒"或"倒置"后而形成的几何体.这种几何体能够切实地考查考生的空间想象能力、掌握知识的水平以及模式识别的能力....
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