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190613-线面垂直定义与判定-22160632

Added by 6 年 ago

100 Views8 Comments

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190613-一元二次方程的解-21150224

Added by 6 年 ago

88 Views6 Comments

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190613-椭圆及标准方程-09160209

Added by 6 年 ago

103 Views7 Comments

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190613一次函数的概念说课-22160604

Added by 6 年 ago

147 Views8 Comments

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190613-余弦定理说课-10150504

Added by 6 年 ago

141 Views4 Comments

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190613-等差数列前n项和说课-22160637

Added by 6 年 ago

140 Views8 Comments

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190613正弦定理说课09150258

Added by 6 年 ago

127 Views9 Comments

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190613平面与平面垂直的性质22160620

Added by 6 年 ago

117 Views8 Comments

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190613-绝对值说课-22150914

Added by 6 年 ago

131 Views3 Comments

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190613-圆锥曲线的统一定义-22160631

Added by 6 年 ago

101 Views5 Comments

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