关于ssat的一道数学题if the paper shown in Figure 4 is folded flat al
关于ssat的一道数学题 if the paper shown in Figure 4 is folded flat along the dotted line,then a pin stuck through point P will also pass through point (A)A (B)B (C)C (D)D (E)E 帮忙解释一下这道题什么意思啦~谢谢了!然后给下答案~谢谢了!