A young man (Exarnple:0)going to join the army (军队)and had to 16 a medical examination. The doctor was sitting at a desk when he came in.He said to the man, "Take your coat and shirt off and 17 on that chair." The young man did so.The doctor looked at him for a moment without 18 up from his chair and thensaid, "All right.Put your clothes on again." "But you haven’ t examined me at all!" the young man said in 19. "There is no need to do so," the doctor said with a 20. "When I 21 you to take your coat and shirt off, you heard me all right, so there is nothing wrong with your 22.Yousaw the chair, so your eyes are 23.Youcould take your clothes off and sit on the chair, soyou must be in good health.And you understand what I told you to do and did it without a 24,so you 25 healthy enough for the army."