初三奥赛模拟测试4

初三奥赛模拟测试4 \(T1\) 最后一课 \(100pts\) 正解等价于求 \(\min\limits_{x_{0} \in \mathbf{R}}^{} \{ \sqrt{(x_{0}-x_{1})^{2}+(k-y_{1})^2}+\sqrt{(x_{0}-x_{1})^{2}+(k-y_