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证明两直线垂直,是初中数学中常见的题型,也是中考的热点之一,因此掌握好此种题型的方法,显得尤为重要.
Proving that two straight lines are vertical is a common type of mathematics in junior high school mathematics. It is also one of the hot spots in the middle school entrance examination. Therefore, it is very important to master the method of this type of question.