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文１对异面直线上两点间的距离公式作了剖析，并给出了它的一些应用，读后颇受启发．本文试就教材的处理和公式的应用再提一些补充意见，以使公式更易于掌握，便于使用．１以定理形式出现作为一个内涵丰富、应用广泛的重要命题，建议教材用黑框将公式框出．可将例２（Ｐ４...
Text 1 analyzes the distance formula between two points on a straight line on the opposite side, and gives some applications for it. It is very inspiring after reading. This article tries to add some additional comments on the processing of textbooks and the application of formulas to make the formula easier to grasp and easy to use. 1 The emergence of the theorem is an important proposition that is rich in content and widely used. It is suggested that the textbook frame the formula with a black box. Example 2 (P4...