工科中专物理教材编写组编，陕西省中专物理教材编写组修订的物理教材（第三版）下册７０页有一道练习题的插图有错误，本人将错就错，在课堂上对这道题进行了讨论，取得了意想不到的效果．←→→→←图１甲乙５０ｋｍｒｘＲＲＧ这道题是这样的：如图１所示，甲乙两站相距... The physics teaching material compiling team of engineering secondary school, the physics textbook (third edition) revised by the physics textbook writing group of Shaanxi secondary school (third edition) The 70th page There is an error in the illustration of a practice question. I will make a mistake, and I will make a mistake in class. The discussion has achieved unexpected results. ← → → → ← Figure 1 A and B 50kmrxRRG This question is as follows: As shown in Figure 1, A and B are two stations apart...