/kaoyan/%E6%95%B0%E5%AD%A6/%E9%AB%98%E7%AD%89%E6%95%B0%E5%AD%A6/%E7%AC%AC2%E7%AB%A0%20%E5%AF%BC%E6%95%B0/%E7%9F%A5%E8%AF%86%E7%82%B9/2.3%20%E5%8D%95%E8%B0%83%E6%80%A7%E3%80%81%E5%87%B9%E5%87%B8%E6%80%A7%E3%80%81%E6%9E%81%E5%80%BC%E7%82%B9%E3%80%81%E6%8B%90%E7%82%B9/ to /kaoyan/math/advanced-math/ch02-dao-shu/knowledge/2.3-dan-diao-xing-ao-tu-xing-ji-zhi-dian-guai-dian