一个三角形的三边长分别为cm，cm，cm则它的周长是（）。-九年级数学

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• -八年级数学
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• The UK, which _______ Great Britain and Northern Ireland, is a country famous for its history.A．cons
• 计算（）-八年级数学
• .--- I was lucky the win a gold medal in the800-metre race.--- You ____ through hard training.A．must
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• 的值是[]A.7B.-1C.1D.-7-八年级数学
• 计算：-八年级数学
• 计算的值是（）。-八年级数学
• —Have you seen Jiang Wen’s movie Let the Bullets Fly recently? —Yes. I it twice last week, At home a
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• ---- What’s our homework for today, Tom? ---- Oh, sorry. I ______.A．hadn’t paid attention B．was not
• 下列运算中，正确的是[]A．2+=2B．(x+2y)2=x2+4y2C．x8÷x4=x2D．÷=x-2-九年级数学
• 计算-=（）。-九年级数学
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• 比较大小：-（）--八年级数学
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• 化简（）。-九年级数学
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• 计算（）-八年级数学
• 计算：-八年级数学
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• 已知5+的小数部分为a，5-的小数部分为b，求：（1）a+b的值；（2）a-b的值。-八年级数学
• 计算：-八年级数学
• It is said that he ________ football in Beijing this afternoon.A．is about to playB．is going to playC
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• 计算：-八年级数学
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