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52. (    )

44. What is the best title of this passage?

• A、People in Need of Help. 
  
  

• B、Safety and Protection. 
  
  

• C、The International Red Cross. 
  
  

• D、Forming an Organization to Help People. 
  
  

40. Doctors (   ). 

• A、encourage people to take part in cold-water swimming actively
  
  

• B、point out the possible danger of blood illness during cold-water swimming
  
  

• C、believe swimming is helpful both in winter and in summer
  
  

• D、have different ideas about the medical effects of cold-water swimming