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I interested in this passage is because,when I was in high school I was in bad condition.My mom took me to the Zhongyi Hospital,the doctor checked my touge and my eyes,and then she analysised me as lacking of blood.I think this kind of skill is marvelous.It's the accumulation of Chinese people's life experience,the wisdom of Chinese people.Everyone could use these skills to analysis whether a person is sick.That's a big advantage campared with western medical skills.