_云南成考网

39. If the information given in this passage is correct, when we look at a star at night (   ). 

• A、we will notice that it is not moving
  
  

• B、we cannot tell whether or not it still exists
  
  

• C、it is four years that the light we can see will reach us
  
  

• D、it will be brighter than the moon
  
  

54. (   )

45. Which of the following is close to the word"aided"?

• A、Demanded.
  
  

• B、Helped.
  
  

• C、Caught. 
  
  

• D、Protected.