论文部分内容阅读
题目1 如图1,已知两国内切于点P,大圆的弦AB切小圆于点C,PC的延长线交大圆于点D.
Question 1 As shown in Figure 1, it is known that two domestic cuts are at point P. The big circle’s chord AB cuts small round at point C, and the PC’s extended round turns round at point D.