_广州成考网

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
  
  

42. The Polar Bears like to swim all the year round, for (   ). 

• A、they can remain young
  
  

• B、it is an easy way to keep the body warm in winter
  
  

• C、they find it enjoyable and interesting
  
  

• D、they might meet fewer troubles in life
  
  

54. (   )