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52. What is the main reason for reducing salt in food?

• A、To improve the flavor of food.
  
  

• B、To decrease the time for processing food.
  
  

• C、To extend the shelf-life of food.
  
  

• D、 To protect people against heart diseases.
  
  

60

38. Which of the following is closest in meaning to the word“exhale”" in Paragraph 3?

• A、 To breathe out.
  
  

• B、To fall asleep.

• C、 To turn your body.
  
  

• D、To getup.