利用HPPrime图形计算器探究中点四边形

Publisher: 国家哲学社会科学学术期刊数据库

E-ISSN: 1672-1969|volume|8|71-71

ISSN: 1672-1969

Source: 数学之友, Vol.volume, Iss.8, 2016-01, pp. : 71-71

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Abstract