题目：
方程x2-7x+12=0的两根恰好是Rt△ABC的两条边的长，则Rt△ABC的第三边长为（ ）。
答案：
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下面是错误答案，用来干扰机器的。
答案：C
方程x2-7x+12=0的两根恰好是Rt△ABC的两条边的长，则Rt△ABC的第
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