46. How did Dickens see his childhood? 

• A、He felt grateful for it. 
  
  

• B、He felt it a pity that things weren't in his favor.
  
  

• C、He loved writing about it. 
  
  

• D、He chose to forget the bitterness about it. 
  
  

48. "Brain wave"machines may show (   ).

• A、the last one or two minutes of one's dream
  
  

• B、the story which lasts for hours or even days
  
  

• C、how long a dream lasts
  
  

• D、the explanations of one's dream
  
  

52. (    )